A group of galaxies in Leo. NGC3185 Size 2.1 x 1.4’Distance: 80 million light-years Grade 12.2 etc. NGC3187 Size 3.6 x 1.7’Distance: 80 million light-years Grade 12.9 etc. NGC3190 Size 4.4 x 1.5’Distance: 80 million light-years Grade 11.1 etc. NGC3193 Size 3.0 x 2.7’Distance: Grade 10.8 etc. I remember the astronomical images taken at the observatory a long time ago. There are many small galaxies without a name, 45 cm Newtonian。
M51 2021-02-20 Whirlpool Galaxy (M51, NGC 5194) is a spiral galaxy in Canes Venatici. Distance 2300 ± 4 million light-years. Luminous 8.4 mag Visibility diameter 11.0′ There is a tree on the north side and the visibility is poor, so I waited until it became high before taking the picture. I am very interested in the difference between the fine spiral structure and the accompanying nebula. There are two small spindle-shaped galaxies to the north of the nebula. 45 cm newtonian
M106 (NGC4258) 2021-02-18 Canes Venatici It is a galaxy about 21 million light-years from Earth. A barred spiral galaxy is a spheroidal bulge that forms a central round bulge. 45cm Newtonian
NGC4565 2021-02-17 It was a night with better transparency and seeing than the previous imaging conditions, but the wind caused the telescope to shake and the stars to become slightly distorted. You can see the inside of the edge-on nebula. 45cm newtonian
NGC4565 2021-02-10 NGC 4565 (Caldwell 38) is a spiral galaxy in the constellation Coma Berenices, with a distance of approximately 30 to 50 million light-years. It is a galaxy seen from the side. With a 45 cm telescope, I can observe the spindle-shaped shape and the black streak in the center. On the lower left side of the galaxy is a small mass of galaxies
M13 2021-02-10 M13 (NGC 6205) is a globular cluster in Hercules. The distance is about 25,100 light-years. Luminous intensity 5.9 mag, apparent diameter 16.6′ When observed with a 45 cm telescope, the center of M13 can be seen separated into stars. It is a difficult celestial body to express the stars up to the center.
M104 2021-02-11 The M104 has a distance of 28 million light-years, a diameter of about 50,000 light-years, and a mass of about 800 billion solar masses. The brightness is 8th magnitude, and at 45cm, the dark body that crosses the center can be seen well. Small galaxies are scattered around the nebula, and the galaxy on the right shows the arms extending up and down. 45 cm Newtonian.
NGC4631 2021-02-04 m / 9.8, Distance / 30 million light-years A barred spiral galaxy facing right。 It looks like a whale or a herring, but to me it looks like a herring. Seeing condition was bad and the star image became large. You can see a small nebula in the distance on the lower right side! (Addition) Supernova AT2021biy in NGC4631 It is T2021biy discovered on January 29th. I noticed and edited the image again I’ve changed. The brightness is 16th magnitude.
M84,M86.おとめ座の方向、約6500万光年離れたところに系外銀河の大集団「おとめ座銀河団です。 45㎝ F/4 視野の広さは0.7°x0.5°（ASPサイズ）。天体の色が少ないのでモノクロ画像に変えていますが、小さな銀河100個程度は写っているでしょう！ 楯方向に帯状ノイズはあります。30秒露光の30枚合成（トータル15分）の試写画像です。 M84, M86. In the direction of Virgo, about 65 million light-years away, a large group of extragalactic galaxies “Virgo cluster. 45 cm F / 4 The field of view is 0.7 ° x 0.5 ° (ASP size) ). Since there are few colors of celestial bodies, I changed it to a monochrome image, and about 100 small galaxies will be shown! There is band noise in the direction of the galaxy. It is a preview image of 30 sheets of 30-second exposure (15 minutes in total).