hosihiroi

[hosihiroi]

North American Nebula and Sadr Region in the constellation Cygnus

Optics; Takahasi ε130D f430 Camera; Nikon D810A Filter BAADER UHC-S Mount; Vixen SXP Guide; QHY5LⅡ PHD2 guiding. Exposure; ISO1600 360sec 7frames dark15 flat15 flatdark 15frames Image Processing; Stellaimage 8, Photoshop CC Date; 2020/5/27 @Shukuno Temperature 13.2℃ Humidity 58%

Cygnus is in the Milky Way, so many nebulae are scattered in this constellation. The most famous of them are the North American Nebula (NGC7000 ) and the Pelican Nebula (IC5067.IC5070).

If you look at the shape of both, the origin of the name is obvious.

This Perican is very cute.

Optics and shooting condition is the same.

The Sadr region, or IC 1318, is the diffuse emission nebula surrounding Sadr (γ Cygni) at the center of Cygnus's cross.

You can see the Crescent Nebula, NGC6888, in the lower right.

The Sadr region is a very beautiful area in which the HII region and the dark nebula are mixed in complexity.

[hosihiroi]

Full Strauberry Moon

Optics; Celestron Edge HD 800 f2032mm(F10) Camera; Nikon D810A Mount; Vixen SXP Exposure; ISO200 1/250sec Image Processing; Stellaimage 8, Photoshop CC Date; 2020/6/4 @Shukuno

My radio said the full moon at this time was called strawberry moon. I was wondering if the moon looked red, but It seems to be the season when wild strawberry blooms. Certainly, there are wild strawberry fruits in my garden.

Optics; Celestron Edge HD 800 f2032mm(F10) Camera; ZWO ASI294MC Mount; Vixen SXP Exposure; Gain 120 60sec 25% Image Processing; Autostakkert3, Stellaimage 8, Photoshop CC Date; 2020/6/4 @Shukuno

[hosihiroi]

Messier 8 Lagoon Nebula and Messier 20 Trifid Nebula in the constellation Sagittarius

Optics; Takahashi FSQ106ED Q1.6× f848 (F8) Camera; Nikon D810A Filter BAADER UHC-S Mount; Vixen SXP Guide; QHY5LⅡ PHD2 guiding. Exposure; ISO1600 600sec 8frame dark10 flat10 flatdark10 frames ×0.8 trimming Image Processing; Stellaimage 8, Photoshop CC Date; 2020/5/2 @Shukuno Temperature 10.9℃ Humidity 91%

I am shooting astronomical objects in my home garden in Shukuno, but it is difficult to shoot the objects on the south side because the southern sky is bright.

In addition, there is an electric wire running to the south side and the Nebula in Sagittarius, very low altitude barely appears on the electric wire before and after the meridian.

I managed to take a picture of the Nebula in Sagittarius this year.

Both Messier 8 and Messier 20 are very famous and popular nebulae, but this is the first time I have taken there picture together.

Optics; Celestron Edge HD 800 f2032mm(F10) Camera; Nikon D810A Filter BAADER UHC-S Mount; Vixen SXP Guide; Off-Axis guide QHY5-Ⅲ174 PHD2 Exposure; ISO1600 600sec 9frames Dark 10 Flat10 Flatdark9 frames Image Processing; Stellaimage 8, Photoshop CC Date; 2020/5/22 @Shukuno Temperature 11.6℃ Humidity 91%

[hosihiroi]

The Iris Nebula in the constellation Cepheus

Optics; Celestron Edge HD 800 f2032mm(F10) Camera; Nikon D810A Filter- Mount; Vixen SXP Guide; Off-Axis guide QHY5-Ⅲ174 PHD2 Exposure; ISO1600 600sec 10frame Dark 12 Flat 8frame Image Processing; Stellaimage 8, Photoshop CC Date; 2020/4/26 @Shukuno Temperature 10.5℃ Humidity 54%

The Iris Nebula, also known as NGC 7023 or Caldwell 4, is a blue reflection nebula in the constellation Cepheus.The blue color of the nebula certainly reminds us of a flowering iris.

You can see that the interstellar dust surrounds this nebula and block out the stars behind it.

In the constellation Cepheus ther are no Messier objects but some fascinating nebulas as the Milky Way passes through. I would like to aim at the nebulas in Cepheus from now on.

[hosihiroi]

Leo Triplett and Markarian's Chain

Optics; Takahashi FSQ106ED Q1.6× f848 (F8) Camera; Nikon D810A Filter BAADER UHC-S Mount; Vixen SXP Guide; QHY5LⅡ PHD2 guiding. Exposure; ISO1600 360sec 8frame dark10 flat8frame Image Processing; Stellaimage 8, Photoshop CC

This winter is over, I changed my telescope from Edge HD800 to FSQ106, because I want to shoot a cluster of galaxies.

Leo Triplett or Messier 66 Group is a small galaxy group, composed of three spiral galaxy, Messier 65, Messier 66 and NGC3628.

Lower right is M65, left is M66 and the upper horizontal galaxy is NGC3623. NGC3623 is characterized by a dark strip running horizontally.

Optics; Takahashi FSQ106ED Q1.6× f848 (F8) Camera; Nikon D810A Filter- Mount; Vixen SXP Guide; QHY5LⅡ PHD2 guiding. Exposure; ISO1600 360sec 7frame dark10 flat7frame Image Processing; Stellaimage 8, Photoshop CC Date; 2020/4/28 @Shukuno Temperature 8.1℃ 33%

Markarian's Chain located in the center of Virgo Cluster and is called a chain because the member galaxies appear to line up in a smooth curve. The members are M84, M86, NGC4477, NGC4473, NGC4461, NGC4458, NGC4435 and NGC 4438.

Messier87 is in the lower left. In 2019, scientists captured the first image of a blackhole in the heart of the Messier 87 using Event Horizon Telescope.

After midnight, the summer constellations, Scorpio or Cygnus, are climbing. I want to end the galaxy series that started at the end of last year and start to look at summer constellation and nebulas.

[hosihiroi]

Messier 3, Messier 63 and NGC 4631, 4656 in the Constellation of Canes Venatici

Messier 3 globular cluster.

Optics; Celestron Edge HD 800 f2032mm(F10) Camera; Nikon D810A Filter BAADER UHC-S Mount; Vixen SXP Guide; Off-Axis guide QHY5-Ⅲ174 PHD2 Exposure; ISO1600 360sec 10frame no dark, no flat Image Processing; Stellaimage 8, Photoshop CC triming×0.625 Date; 2020/3/21 @Shukuno Temperature 4.3℃, Humidity 79%

Messier 3 is a globular cluster of stars in the constellation of Canes Venatici. It is a large star cluster with 500,000 stars. It is said all stars are older than 10 billion.

146 globular clusters have been found in our galaxy and they are all distributed in an area called halo, outside the galaxy bulge and disc.

Messier 63 The Sunflower Galaxy

Optics; Celestron Edge HD 800 f2032mm(F10) Camera; Nikon D810A Filter BAADER UHC-S Mount; Vixen SXP Guide; Off-Axis guide QHY5-Ⅲ174 PHD2 Exposure; ISO3200 360sec 16frame Dark 20, Flat 10, Flatdark 10frame Image Processing; Stellaimage 8, Photoshop CC triming ×0.625 Date; 2020/3/17 @Shukuno Temperature 6.7℃, Humidity 79%

Messier 63 also known as Sunflower Galaxy, is a spiral galaxy in the constellation of Canes Venatici.

NGC4631（right upper）and NGC4656（left lower）

Optics; Celestron Edge HD 800 f2032mm(F10) Camera; Nikon D810A Filter BAADER UHC-S Mount; Vixen SXP Guide; Off-Axis guide QHY5-Ⅲ174 PHD2 Exposure; ISO3200 600sec 10frame Dark 10, Flat 7, Flatdark 10frame Image Processing; Stellaimage 8, Photoshop CC no triming Date; 2020/3/24 @Shukuno Temperature 2.8℃, Humidity 64%

NGC 4631 and NGC4656 are neibouring galaxies, their actual distance between each other is 200,000 light-years.

NGC4631 is called "Whale Galaxy" or "Herring Galaxy" because of it's characteristic form. NGC4656 is conected with NGC4631 by hydrogen gas under the influence of gravity and it's northern part is distorted.

[hosihiroi]

The Owl Nebula and the Thor’s Helmet Nebula

Unusual for this winter, on February 23 we had a clear winter night sky.

I set up my telescope in the evening and waited for the sky to darken further. My main targets this night were galaxies in the constellations of Ursa Major and Virgo, but I had a little more time before they would climb to a good height.

While waiting, I took pictures of two small nebulae visible in the early spring night sky.

Messier 97 the Owl Nebula

×0.625 triming

Optics; Celestron Edge HD 800 f2032mm(F10) Camera; Nikon D810A Filter BAADER UHC-S

Mount; Vixen SXP Guide; Off-Axis guide QHY5-Ⅲ174 PHD2 Exposure; ISO3200 600sec 7frame Dark 12, Flat 7, Flatdark 10frame

Image Processing; Stellaimage 8, Photoshop CC no triming

Date; 2020/2/23 @Shukuno Temperature 2.8℃, Humidity 64%

×1.0

The first was Messier 97, also known as the Owl Nebula, is a planet nebula in the constellation of Ursa Major.

It's easy to imagine an owl with two eyes from this picture.

It is said that the nebula has been gradually expanding and will completely disperse into space over the next several thousand years.

NGC 2359 Thor’s Helmet Nebula

×0.625 triming

Optics; Celestron Edge HD 800 f2032mm(F10) Camera; Nikon D810A Filter BAADER UHC-S

Mount; Vixen SXP Guide; Off-Axis guide QHY5-Ⅲ174 PHD2 Exposure; ISO3200 600sec 9frame Dark 12, Flat 7, Flatdark 10frame

Image Processing; Stellaimage 8, Photoshop CC no triming

Date; 2020/2/23 @Shukuno Temperature 2.8℃, Humidity 64%

×1.0

Second is NGC 2359, also called Thor’s Helmet Nebula, in the constellation of Canis Major (the Greater Dog).

It seems like Thor, the thunder god from Scandinavian mythology. Can you imagine his helmet from this picture？

I had not known about Thor, I searched for a picture of Thor on the Internet.

Certainly NGC2356 resembles Thor's helmet.

It's very different from the Japanese thunder god.

[hosihiroi]

Pinwheel Galaxy in the constellation Ursa Major and Messier 106 in Canes Venatici

Messier 101 Pinwheel Galaxy

Optics; Celestron Edge HD 800 f2032mm(F10) Camera; Nikon D810A Filter BAADER UHC-S

Mount; Vixen SXP Guide; Off-Axis guide QHY5-Ⅲ174 PHD2 Exposure; ISO3200 600sec 11frame Dark 12, Flat 7, Flatdark 10frame

Image Processing; Stellaimage 8, Photoshop CC no triming

Date; 2020/2/23 @Shukuno Temperature 2.8℃, Humidity 64%

Messier 101, also known as the Pinwheel Galaxy, is a face-on (when viewed from Earth) spiral galaxy in the constellation of Ursa Major (the Great Bear).

In Japan, it is called "回転花火銀河" kaiten hanabi ginga, the Rotating Fireworks Galaxy. True to its nickname, this explosive star formation seems to have arms.

Messier 106

Optics; Celestron Edge HD 800 f2032mm(F10) Camera; Nikon D810A Filter BAADER UHC-S

Mount; Vixen SXP Guide; Off-Axis guide QHY5-Ⅲ174 PHD2 Exposure; ISO3200 600sec 10frame Dark 12, Flat 7, Flatdark 10frame

Image Processing; Stellaimage 8, Photoshop CC no triming

Date; 2020/2/23 @Shukuno Temperature 2.8℃, Humidity 64%

Messier 106 is an intermediate spiral galaxy in the constellation of Canes Venatici. It appears as a clear inner disk, separate from a pale outer one.

You can see NGC 4217, a possible companion galaxy of Messier 106, in the upper right.

I am fond of the galaxies, Messier 101 and 106, which are very popular targets for astronomers due to their large size and beautiful shape.

[hosihiroi]

Whirlpool Galaxy, Silver Needle Galaxy and Cocoon Galaxy in the Constellation Canes Venatici

The constellation Canes Venatici is noticeable between the Big Dipper and Coma Berenices. From here I can see only two stars and can barely make out two dogs. This constellation has many famous and beautiful galaxies.

Messie51 Whirlpool Galaxy

Optics; Celestron Edge HD 800 f2032mm(F10) Camera; Nikon D810A BAADER UHC-S Filter

Mount; Vixen SXP Guide; Off-Axis guide QHY5-Ⅲ174 PHD2

Exposure; ISO3200 360sec x 15frame Image Processing; Stellaimage 8, Photoshop CC dark 6 flat 6frame, triming×0.625

Date; 2020/2/17 @Shukuno Temperature -0.8℃, Humidity 63%

Messie 51, better known as the Whirlpool Galaxy, is also called Parent-Child Galaxy "親子銀河" in Japan. It looks like it's holding hands with a smaller galaxy, but these two galaxies are actually passing each other and the smaller galaxy is actually being swallowed up by the larger galaxy.

Because M51 is bright and colorful it is one of my most favorite galaxies.

NGC4244 Silver Needle Galaxy

same system of Optics.

Exposure; ISO3200 360sec x 10frame Image Processing; Stellaimage 8, Photoshop CC dark 6 flat 6frame, triming to APS-C size

Date; 2020/2/17 @Shukuno Temperature -0.8℃, Humidity 63%

NGC4244 is an edge-on loose spiral galaxy in the constellation Canes Venatici and is part of the M94 Group, a galaxy group relatively close to the Local Group containing our Milky Way Galaxy.

Because its bulge is thin and its silhouette is very slender it is also called the Silver Needle Galasy.

NGC4490 Cocoon Galaxy

same system of Optics.

Exposure; ISO1600 360sec x 12 Image Processing; Stellaimage 8, Photoshop CC dark 7 flat 6frame, triming×0.625

Date; 2020/2/1 @Shukuno Temperature -2.3℃, Humidity 63%

NGC4490, also known as the Cocoon Galaxy, is a barred spiral galaxy. It is deformed by the interaction of two galaxies (the small one is called NGC4485). The Cocoon Galaxy, known for its atypical shape, has another peculiarity — it has two nuclei in its center, instead of only one.

The constellation Canes Venatici is home to another Messier Galaxies, M63, M94, M106, I'm waiting for the next clear night.

[hosihiroi]

Messie 81, the Bode' s Galaxy, NGC 371８and 3729 of Ursa Major

After shooting Messie 82 we had a long string of cloudy and rainy days.

Our rainy season in Japan usually comes in June and July. This month, however, it has been like having a unseasonable "梅雨 Tuyu" rainy season .

January usually has the coldest and clearest days in a year, so this month should be the best season for astrophotography.

On January 21, in the middle of the night, it was finally clear and I was able to shoot Messie 81 at last.

Optics; Celestron Edge HD 800 f2032mm(F10) Camera; ZWO ASI294MCpro Cooling temperature -19.8℃ No filter.

Mount; Vixen SXP Guide; Off-Axis guide QHY5-Ⅲ174 PHD2

Exposure; gain 250 360sec x 20 frame Image Processing; Stellaimage 8, Photoshop CC no dark and flat frame, no triming

Date; 2020/1/21 @Shukuno Temperature -2.2℃, Humidity 87%

Messie 81 was first discovered by Johann Elert Bode, a French astronomer, on December 31, 1774. The galaxy's large size and high brightness makes it a popular target for amateur astronomers.

The bright nucleus and the arms surrounding it are beautiful and impressive.

After shooting Messier 81, I shot NGC 3718 and 3729, also in Ursa Major.

Optics; Celestron Edge HD 800 f2032mm(F10) Camera; ZWO ASI294MCpro Cooling temperature -19.8℃ No filter.

Mount; Vixen SXP Guide; Off-Axis guide QHY5-Ⅲ174 PHD2

Exposure; gain 280 360sec x 9 frame Image Processing; Stellaimage 8, Photoshop CC no dark and flat frame, no triming

Date; 2020/1/21 @Shukuno Temperature -2.2℃, Humidity 87%

NGC 3718（right）and NGC3729（left）.

Trimming the lower part from NGC 3718.

NGC 3718 is stretched vertically under the influence of NGC 3729.

Just below NGC 3718 you can see a small cluster of galaxies called HCG 56（Hixson' s Compact Galaxies）. These galaxies seem to be approaching and affecting each other.

Exposure time planned for 2 hours, but ended in 54 minutes because it became cloudy.

I hope the "梅雨" season to end soon and good winter nights to come back.

[hosihiroi]

Messie 82 of Ursa Major, the Cigar Galaxy

Optics; Celestron Edge HD 800 f2032mm(F10)

Camera; ZWO ASI294MCpro +BAADER UHC-S

Mount; Vixen SXP

Guide; Off-Axis guide QHY5-Ⅲ174 PHD2

Exposure; gain 300 360sec x 10frame Image Processing; Stellaimage 8, Photoshop CC no dark and flat frame, no triming

Date; 2020/1/3 @Shukuno Temperature -0.8℃, Humidity 84%

Messie 82 is a starburst galaxy in the constellation of Ursa Major. It' size is about half of our Milky Way Galaxy.

Messie 81 and 82 are said to have collided about 600 million years ago, and the collision lasted about 100 million years.

Due to the impact of this collision, star formation is still active in Messie 82.

Messie 82 is also called the Cigar Galaxy. I think someone accidentally lit the middle of this bic cigarette.

[hosihiroi]

Messie 81&82 of Ursa Major 大熊座M81&82

Messie 81 and 82 of Ursa Major are rising at the top of spring galaxy seaies.

Optics; Takahasi FSQ106 f530mm(F5.6)

Camera; ZWO ASI294MCpro+BAADER UHC-S target temperature -20℃

Mount; Vixen SXP

Guide; Kowa 100mm guidescope, QHY5L-Ⅱ, PHD2guiding

Gain 300　Exposure 360sec x15frame (total exposure 90minutes)

Image Processing; Stellaimage8, Photoshop CC

Date; 2019/12/29 @Shukuno Temperature -0.6℃ Humidity90%

The top is Messie82 and the bottom is Messie81.

Thease two galaxies are acutually exist nearby one another so Influence each other. As a result massive ionized hydrogen molecules are rereased from center of M82. The region containing a large amount of hydrogen gas is called HⅡ region and looks red in photo.

In HⅡ region new stars are boan explosively, so thease galaxsies are called star burst galaxy.

To me they look like good friends, but the real universe seems to be hard.

[hosihiroi]

Angelfish and Raspberry Nebula of Orion エンゼルフィッシュ星雲とラズベリー星雲

Happy New Year from japan.

In japan, sea bream is considered a lucky fish. Peaple eat whole grilled sea bream on New Year's Day, but I have never eaten it.

I hope to take a photo of stars related sea bream. I have never heard of stars with such a name so I decided to take a picture of angelfish in the sky because angelfish stand for luck.

Orion / the Hunter

Optics: SIGMA 24-105mm F4 Camela: Canon EOS6D＋Kenko PRO1 Digital Mount: Vixen SXP, Guide: Kowa 100mm guidescope, QHY5L-Ⅱ, PHD2guiding Exposure: ISO800 180sec 17frame (total exporsure 51minutes) Image processing: Stellaimage 8, Photoshop CC no dark and flat Date: 2020/01/02 ＠Shukuno temperature -1.7℃, Humidity 79% SH-2 264 looks slightly red at the top of this photo.

Angelfish Nebula SH-2 264

Optics: SIGMA 24-105mm F4 Camela: Canon EOS6D＋IDAS LPS-D1 Mount: Vixen SXP Guide: Kowa 100mm guidescope, QHY5L-Ⅱ, PHD2guiding Exposure: ISO1600 180sec 30frame (total exporsure 90minutes) Image processing: Stellaimage 8, Photoshop CC no dark and flat Date: 2020/01/02 ＠Shukuno temperature -1.7℃, Humidity 79% Stray light has entered, in the middle of this photo, sorry.

SH-2 264, combined HII region and supernova remnant, is called the Angelfish Nebula because of it's visual appearance.

Unlike it's cute appearance, real angelfish is very ferocious. This one looks going to bite a feed now.

Raspberry Nebula SH-2 263

Optics; Takahasi FSQ106+645QE0.73RD f380mm(F3.6) Camera; Nikon810A+IDAS NB1 Mount; Vixen SXP Guide; Kowa 100mm guidescope, QHY5Ｌ-Ⅱ, PHD2guiding Exposure; ISO3200 360sec x20frame (total exposure 2hours) Image Processing; Stellaimage 8, Photoshop CC Dark10fr Flat10fr, no triming Date; 2019/12/25 @Shukuno Temperature 0.6℃, Humidity 86% Angelfish Nebula in upper left and SH-2 265 in lower right are visible on this photo.

This red feed is SH-2 263, called Raspberry Nebula or Moldy Strawberry Nebula. I feel the nickname Modly Strawberry is very poor.

Because blue reflactory nebula(vdB38) overlaps red nebula SH-2 263, it is called Moldy Strawberry. The blue portion was not visible in this shoot, so I just took a picture of a "Strawberry Nebula".

[hosihiroi]

一角獣座 クリスマスツリー星団

Christmas tree star cluster NGC2264 of the Unicorn

There is no Christmas tree in my house.

You too?

However, when you look up at the winter night sky, Christmas tree can be found.

Unfortunately, you need a telescope and camera to see this Christmas tree.

Optics; Celestron Edge HD 800 f2032mm(F10) Camera; Nikon810A+BAADER UHC-S Mount; Vixen SXP Guide; Off-Axis guide QHY5-Ⅲ174 PHD2guiding Exposure; ISO1600 360sec x20frame (total exposure 2hours) Image Processing; Stellaimage 8,Photoshop CC Dark10fr Flat10fr, no triming Date; 2019/11/30 @Shukuno Temperature 9.9℃, Humidity 79% North-south reversal

クリスマス用に、11月に撮ったクリスマスツリー星団を南北をひっくり返してアップしてみました。

[hosihiroi]

オリオン座 M42 & M78星雲

月明かりが強くなってきたので、通常撮影はあきらめ、光害カットフィルターを使っていくつかテストをしています。

一つ目は、初分子雲です。

M42 オリオン座大星雲とその周囲の分子雲

Optics; Takahasi FSQ106+ExtenderQ1.6 f848mm(F3.6) Camera; Nikon810A+BAADER UHC-S Mount; Vixen SXP Guide; Kowa 100mm guidescope, QHY5L-Ⅱ. PHD2guiding Exposure; ISO1600 600secx7frame, 300sec× 4frame, 60sec×4frame ( total exposure 94minutes) Image Processing; Stellaimage 8, Photoshop CC+Color Efex Pro4   Dark10fr Flat10fr, no triming Date; 2019/12/4 @Shukuno Temperature 0.3℃, Humidity 87%

The molecular cloud is a collective term for debris or gas floating in outer space between stars. I took a picture of the great Orion nebula Messie42 and molecular clouds surrounding M42. The molecular clouds are faintly visible. Messie42, the great Orion nebula is realy beautiful. It looks like ＨＡＧＯＲＯＭＯ、a costume worn by a heavenly woman in Japanese folk tales.

オリオン座M42大星雲周囲の分子雲を狙いました。淡いですが、M42の周囲を分子雲が取り巻いていました。

分子雲は、星と星の間の宇宙空間に漂う星間ガスの総称です。ここからあらたに星が誕生すると言われ、星のゆりかごみたいなものでしょうか。

分子雲を撮影するには、光害のない暗い空でないと難しいと思っていて、これまで手を出したことはありませんでしたが、雑誌などで比較的空が明るいところでもきちんと撮影すれば撮れると書いてあって、今回初挑戦してみました。

画像処理の段階でかなり暗い部分を強調するので、フラット補整の勉強もし直しました。最終の画像処理で、Color Efex Pro4の30日無料体験版も使ってみました。難しい画像処理ソフトですが、使いこなせるようになりたいです。

もう一つのテストは、まだ十分に使えていない冷却CMOSカメラ。これから撮る予定の系外銀河の準備です。

オリオン座 M78 散光星雲 Messie 78 is the Ultraman' hometown

Optics; Takahasi FSQ106 f530mm(F5.6) Camera; ZWO ASI294MCpro+IDAS NB1 Mount; Vixen SXP Guide; Kowa 100mm guidescope, QHY5L-Ⅱ, PHD2guiding Gain 200　Exposure 300sec x21frame (total exposure 105minutes) Image Processing; Stellaimage8, Photoshop CC+Color Efex Pro4 Date; 2019/12/8 @Shukuno Temperature -0.5℃, Humidity89%

I took Messier78, refractory nevil of Orion. M78 is the hometown of Ultraman, the hero of Japanease special effects movie and TV.

真ん中の青い星雲がM78。左上の赤い部分は三ツ星を取り巻くバーナードループの一部。右下は三ツ星の一番左の星からの光条です。ダーク・フラット補整ができていないこと、最終処理でこれもColor Efex Proを使ったのでノイズがひどいのですが、冷却CMOSは何とか使えそうです。

M78星雲、ウルトラマンの生まれ故郷。始めて撮影できました。

ウルトラマンシリーズの中では、M78は銀河系から300万光年離れた星雲と言われたそうですが、本物のM78は地球から1600光年離れていて、もっと近くにあります。

星雲だと、いくらウルトラマンでも住めないですよね。

[hosihiroi]

おうし座とぎょしゃ座の 超新星残骸

超新星残骸が好きです。

星は生まれ、そして死んでいく。そんな事は知っていても、なかなかイメージできません。星も星座もいつ見ても同じように同じところに輝いています。

ところが、天体の中でその星の一生の過程の一コマを見ることができる対象があります。その一つが超新星残骸です。

おうし座 超新星残骸 SH2-240

Optics; Takahasi FSQ106+645QE0.73RD f380mm(F3.6) Camera; Nikon810A+IDAS NB1 Mount; Vixen SXP Guide; Kowa 100mm guidescope, QHY5L-Ⅱ, PHD2guiding Exposure; ISO1600 360sec x32frame (total exposure 3h12m) Image Processing; Stellaimage8,Photoshop CC Dark10fr Flat10fr, no triming  Date; 2019/12/2 @Shukuno Temperature 6.8℃, Humidity 84%

もう一枚。

ぎょしゃ座 超新星残骸 SH2-223（右下）と SH2-224（左上）

Optics; Takahasi FSQ106+645QE0.73RD f380mm(F3.6) Camera; Nikon810A+IDAS NB1 Mount; Vixen SXP Guide; Kowa 100mm guidescope, QHY5L-Ⅱ, PHD2guiding Exposure; ISO1600 360sec x40frame total exposure 4hours Image Processing; Stellaimage 8, Photoshop CC Dark10fr Flat10fr, no triming Date; 2019/11/30 @Shukuno Temperature -1.6℃, Humidity 86%

 超新星残骸は、星の一生の最終段階に大爆発を起こし、吹き飛んだ星の残骸と、その周囲の星間ガスが衝撃波によって数千万度まで加熱されて輝いている状態だそうです。その後は何万年もの間膨張し続け、最後には消滅します。

この衝撃波は数十光年先まで広がるとされ、さらに強烈なガンマ線によって周囲の星に影響を与えます。４億５千年前の地球での大絶滅の原因とも考えられているそうです。

オリオン座の左の上、赤い１等星ベデルギウスは、2009年にNASAが超新星爆発の前兆である収縮が起こっていると発表され注目されています。もしベテルギウスが爆発すると、爆発から３か月は満月の100倍で光り輝きます。

超新星爆発、一度は見てみたいものですが、地球から約640光年先のベテルギウスからのガンマ線によって地球のオゾン層が破壊される可能性もあり、楽しい話題ではありません。

そんなダイナミックな超新星残骸ですが、見た目はかわいい。上のSH2-240は、まるでたい焼き。下の写真の左上のSH2-224は、葉を広げたチューリップの様に見えました。

[hosihiroi]

一角獣座 コーン星雲周辺

もうしばらくすると、おおいぬ座やしし座・おとめ座の系外銀河の季節になります。そうすると、鏡筒の主役がFSQからEdgeに交代します。

その前にFSQで取り残した星雲を撮っておきたいと思っています。まだまだいっぱいありますが。

一角獣座 コーン星雲付近

Optics; Takahasi FSQ106+645QE0.73RD f380mm(F3.6) Camera; Nikon810A+IDAS NB1 Mount; Vixen SXP Guide; Kowa 100mm guidescope, QHY5Ｌ-Ⅱ, PHD2guiding Exposure; ISO3200 360sec x20frame (total exposure 2hours) Image Processing; Stellaimage 8, Photoshop CC Dark10fr Flat10fr, no triming Date; 2019/11/30 @Shukuno Temperature -1.6℃, Humidity 86%

欲張って隣のかたつむり星雲も入れようとしましたが、この画角では無理でした。右端ぎりぎりの青い×マークがかたつむり星雲。

まだ少し早いですが、この中心部分。コーン星雲とクリスマスツリー星団。先日の、Edge HD800+オフアキシスガイド予行演習中の１枚。

一角獣座 コーン星雲とクリスマスツリー星団

Optics; Celestron Edge HD 800 f2032mm(F10) Camera; Nikon810A+BAADER UHC-S Mount; Vixen SXP Guide; Off-Axis guide QHY5-Ⅲ174 PHD2guiding Exposure; ISO1600 360sec x20frame (total exposure 2hours) Image Processing; Stellaimage 8, Photoshop CC Dark10fr Flat10fr, no triming Date; 2019/11/30 @Shukuno Temperature 9.9℃, Humidity 79%

画面の上下を逆さまにすると、並んだ星がクリスマスツリーのイルミネーションに見えます。

一角獣獣座には、更にメジャーな星雲があります。

一角獣座 NGC2237-9 バラ星雲

Optics; Takahasi FSQ106 f848mm(F8) Camera; Nikon810A+BAADER UHC-S Mount; Vixen SXP Guide; Kowa 100mm guidescope, QHY5Ｌ-Ⅱ, PHD2guiding Exposure; ISO1600 400sec x18frame (total exposure 2hours) Image Processing; Stellaimage 8, Photoshop CC Dark6fr Flat6fr. no triming Date; 2019/11/30 @Shukuno Temperature -1.6℃, Humidity 86%

バラ星雲はこれが３度目。明るいけど、なかなか難しいです。今回は、構図を失敗。

もう一枚、FSQ106+レデューサーの写真。

ふたご座 IC443 くらげ星雲

Optics; Takahasi FSQ106+645QE0.73RD f380mm(F3.6) Camera; Nikon810A+IDAS NB1 Mount; Vixen SXP Guide; Kowa 100mm guidescope, QHY5Ｌ-Ⅱ, PHD2guiding Exposure; ISO800 360sec x30frame (total exposure 3hours) Image Processing; Stellaimage 8, Photoshop CC Dark10fr Flat10fr, no triming Date; 2019/11/30 @Shukuno Temperature 5.6℃, Humidity 80%

頭から湯気を出してるくらげが、宇宙をプカプカ浮いてる感じが好きです。

とってもSF的。ちなみにSF大好きです。