
KSC-2009-5090 · NASA · NASA — public domain
Ross 128
Sign in to saveAlso known as FI Virginis, FI Vir, GJ 447, Zkh 169, PLX 2730, EPIC 201518346, ASCC 1136005, GAT 1131
small star in the equatorial zodiac constellation of Virgo
Astronomical data · SIMBAD
- Object type
- PM*
- Spectral type
- dM4
- Distance
- 11 light-years
- Redshift
- z = -0.00010226552246928033
- Coordinates
- RA 176.9350° · Dec 0.8046°
via SIMBAD · CDS Strasbourg
Key facts
- Constellation
- Virgo
- Right ascension
- 11 47 44.39727
- Declination
- +00 ° 48 ′ 16.4003 ″
- Evolutionary stage
- Main sequence
- Spectral type
- M4V
- U b color index
- +2.685
- B v color index
- +1.59
- Variable type
- Flare star
via Wikipedia infobox
Wikidata facts
- Distance from Earth
- 3.3806
- Radius
- 0.1967
- Mass
- 0.168
- Image
- Ross128.jpg
Show 17 more facts
- spectral class
- dM4.0
- catalog code
- VVO 214
- apparent magnitude
- 9.601
- metallicity
- 0
- parallax
- 296.3053
- absolute magnitude
- 13.51
- effective temperature
- 3192
- luminosity
- 0.00362
- Commons category
- Ross 128
- radial velocity
- -30.372801
- surface gravity
- 100000
- right ascension component of proper motion
- 607.299
- declination component of proper motion
- -1223.028
- age estimated by a dating method
- 5.0
- right ascension
- 176.93498861692
- declination
- 0.80455565090
- stellar rotational velocity
- 2.1
Sources (1)
via Wikidata · CC0
~6 min read
Article
Ross 128 is a red dwarf star in the equatorial zodiac constellation of Virgo, near β Virginis. The apparent magnitude of Ross 128 is 11.13, which is too faint to be seen with the unaided eye. Based upon parallax measurements, the distance of this star from Earth is 11.007 light-years (3.375 parsecs), making it the twelfth closest stellar system to the Solar System. It was first cataloged in 1926 by American astronomer Frank Elmore Ross. It is the nearest star in Virgo, and so is occasionally called "Proxima Virginis" by analogy with Proxima Centauri.
Properties