Key facts
- Constellation
- Leo
- Right ascension
- 10h 16m 33s
- Declination
- +21° 07 ′ 23″
- Surface brightness
- 22.34 mag/arcsec^2
- Type
- SA(rs)b
- Apparent size v
- 1.6 ′ × 1.3 ′
via Wikipedia infobox
Wikidata facts
- Instance of
- spiral galaxy
- Constellation
- Leo
- Distance from Earth
- 20.40
- Image
- NGC 3177 hst 06359 69 606.png
Show 11 more facts
- catalog code
- Gaia DR2 625840300543702144
- galaxy morphological type
- Sb
- Commons category
- NGC 3177
- discoverer or inventor
- William Herschel
- time of discovery or invention
- 1784-00-00
- apparent magnitude
- 11.509
- right ascension
- 154.14226565595640
- declination
- 21.12305192822360
- radial velocity
- 1220
- redshift
- 0.00430
- epoch
- J2000.0
via Wikidata · CC0
~1 min read
Encyclopedic overview
NGC 3177 is a spiral galaxy located in the constellation Leo. Its speed relative to the cosmic microwave background is 1,627 ± 22 km/s, which corresponds to a Hubble distance of 24.0 ± 1.7 Mpc (~78.3 million ly). NGC 3177 was discovered by the German-British astronomer William Herschel in 1784.
The luminosity class of NGC 3177 is II and it has a broad HI line. It also contains regions of ionized hydrogen. According to the SIMBAD database, NGC 3177 has an active galactic nucleus.
Excerpted from Wikipedia’s “Q1103366” article, available under the CC BY-SA 4.0 licence.
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