NGC 5866B

Intermediate spiral galaxy in the constellation Draco

NGC 5866B
Observation data (J2000 epoch)
Constellation	Draco
Right ascension	15^h 12^m 7.23^s
Declination	+55° 47′ 6.29″
Redshift	+907 km/s
Distance	52.5 ± 3.1 Mly (16.1 ± 0.94 Mpc)^[1]
Apparent magnitude (V)	15.7
Characteristics
Type	SAB(rs)dm
Size	14.05 kpc
Apparent size (V)	2.33′ × 1.66'
Other designations
UGC 9769, PGC 54267

NGC 5866B (also known as UGC 9769) is an intermediate spiral galaxy located about 52 million light-years away from Earth in the constellation of Draco.^[1] It is sometimes classified as a member of the NGC 5866 Group of galaxies ^{[citation needed]} and has a diameter of around 45.8 kly (14.05 kpc). In visible light, the galaxy exhibits an overall bluish color and as it is relatively dim for a galaxy of its size, it is classified as a low surface brightness galaxy (LSB).^[2]^[3]

NGC 5866B is located relatively close in the sky to the more well-known NGC 5907 (Splinter Galaxy) and NGC 5866 (Spindle Galaxy).^[4]

References

^ ^a ^b "NED results for NGC 5866B". NASA/IPAC Extragalactic Database via Univ. of California. Retrieved 2024-02-22.
^ Michael Feigenbaum (2022-07-28). "NGC 5907 (NGC 5906) The Splinter Galaxy and UGC 9769". Retrieved 2024-02-22.
^ Isha Pahwa & Kanak Saha (2018). "Structural properties of faint low-surface-brightness galaxies". Monthly Notices of the Royal Astronomical Society. 478 (4): 4657–4668. arXiv:1805.00499. doi:10.1093/mnras/sty1139.
^ Telescopius.com. "Telescope simulator - UGC 9769". Retrieved 2024-02-22.

Constellation of Draco

Stars

Bayer	α (Thuban) β (Rastaban) γ (Eltanin) δ (Altais) ε (Tyl) ζ (Aldhibah) η (Athebyne) θ ι (Edasich) κ λ (Giausar) μ (Alrakis) ν (Kuma) ξ (Grumium) ο π ρ σ (Alsafi) τ υ φ χ ψ¹ (Dziban) ψ² ω
Flamsteed	6 7 (Tianyi) 8 (Taiyi) 10 (i) 15 (A) 18 (g) 19 (h) 26 36 39 (b) 42 (Fafnir) 45 (d) 64 (e) 68
Variable	TW AG BY CL CM CX DO V581
HR	3751 4126 4934 5811 6237 6618 (Alruba) 6817 7137 7783
HD	101364 156279 158259 176693 191939
Other	2MASS 1237+6526 2MASS J17554042+6551277 G 240-72 GD 356 Gliese 420 Gliese 625 Gliese 687 GRW +70 8247 Kepler-4 Kepler-10 Kepler-12 Kepler-90 Kepler-296 LP 71-82 Qatar-1 Struve 2398 TOI-1136 WISE 1647+5632

Exoplanets	Orbitar HD 139357 b HD 167042 b Hypatia Kepler-4b Kepler-10b c Kepler-12b Kepler-90e f g h i TOI-1452 b TrES-2b

Star clusters	LAMOST 1

Nebulae	Abell 50 Cat's Eye Nebula

Galaxies

NGC	3147 4121 4125 4236 4319 4345 4513 4589 5678 5777 5866 5866B 5879 5906 5907 5949 5963 5965 5982 5985 6090 6248 6285 6286 6340 6365 6373 6394 6412 6503 6566 6621 6622 6670 6676 6786 6789
Other	3C 249.1 3C 305 3C 319 3C 371 3C 390.3 3C 401 4C +72.26 H1821+643 HFLS3 KKR 25 PGC 39058 UGC 9391