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NGC 5777

Observation data (J2000 epoch)
Constellation	Draco
Right ascension	14h 51m 18s
Declination	+58° 58′ 40″
Distance	~114 million
Apparent magnitude (B)	14.2
Surface brightness	23.96 mag/arcsec2
Other designations
UGC 9568, LEDA 53043, ISOSS J14513+5858

NGC 5777 is a large edge-on spiral galaxy located in the constellation Draco.^[1] Its speed relative to the cosmic microwave background is 2,210 ± 5 km/s, which corresponds to a Hubble distance of 32.6 ± 2.3 Mpc (~106 million ly). NGC 5777 was discovered by German-British astronomer William Herschel in 1789.^[2]

The luminosity class of NGC 5777 is II and it has a broad HI line.^{[clarification needed]} It is also an active galaxy with narrow optical emission lines.^[3]^{[failed verification]} To date, nine non-redshift measurements yield a distance of 44.289 ± 8.577 Mpc (~144 million ly), which is just within the distance values of Hubble.

A spectrum obtained on July 10, 2001, by the Isaac Newton Telescope showed a type-IIp supernova at the center of NGC 5777.^[4] SN 2001dc was formed from a group of low-luminosity events, among with other supernovae in the region. They contain narrow spectral lines (indicating low expansion velocities) and low luminosities at every phase, which is untypical for a supernovae.^[5]

External links

NGC 5777 at SIMBAD
NGC 5777 at NASA/IPAC

References

^ "NGC 5777 - Spiral Galaxy in Draco | TheSkyLive.com". theskylive.com. Retrieved 2024-04-16.
^ Guide, Universe (2 July 2022). "NGC 5777 Galaxy Facts (UGC 9568) & Distance". Universe Guide. Retrieved April 16, 2024.
^ Iovene, Salvatore. "NGC 5777". AstroBin. Retrieved 2024-04-16.
^ Hurst, G. M.; Armstrong, M.; Meikle, P.; Bramich, D.; Corradi, R.; Erwin, P.; Boles, T.; Irwin, M.; Fassia, A. (2001-07-01). "Supernova 2001dc in NGC 5777". International Astronomical Union Circular (7662): 1. Bibcode:2001IAUC.7662....1H. ISSN 0081-0304.
^ "Low-luminosity Type II supernovae: spectroscopic and photometric evolution". academic.oup.com. Retrieved 2024-04-16.

New General Catalogue 5500 to 5999

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 6338 6340 6365 6373 6394 6412 6503 6566 6621 6622 6670 6676 6786 6789
Other	1ES 1959+650 3C 249.1 3C 305 3C 319 3C 356 3C 371 3C 390.3 3C 401 4C +72.26 H1821+643 HFLS3 KKR 25 Markarian 876 PGC 39058 S5 1803+784 S5 2007+777 UGC 9391

Galaxy clusters	Abell 2218 CL1358+62 Draco Supercluster

Astronomical events	Swift J1644+57 SN 2005B SN 2016aps

See also

External links

References