astro.wikisort.org - StarSS Virginis is a Mira variable star that appears with a strong red hue. It varies in magnitude from a minimum of 9.5 to a maximum of 7.4[5] over a period of 361 days. It is also considered to be a semiregular variable star, as its minimum and maximum magnitude are themselves variable over a period of decades.[6] Its spectral class is C63e. Because it is so rich in carbon, SS Virginis is classified as a carbon star, along with stars like T Geminorum. SS Virginis, like all carbon Mira variables, has a hydrogen-alpha emission line that varies widely, synchronized with the overall variations in light. The hydrogen-alpha emission line becomes far more prominent as the star becomes brighter.[5] Observations made in the near-infrared spectrum indicate that it has a radius of 500 solar radii, and its temperature is between 2405 and 2485 kelvins.[7]
Star in the constellation Virgo
SS Virginis
|
Observation data Epoch J2000 Equinox J2000 |
Constellation |
Virgo |
Right ascension |
12h 25m 14.3952s[2] |
Declination |
+00° 46′ 10.9467″[2] |
Apparent magnitude (V) |
9.5 to 7.4 |
Characteristics |
Spectral type |
C53e[3] |
Astrometry |
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|
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Radial velocity (Rv) | 2[4] km/s |
Proper motion (μ) | RA: −1.448±0.228[2] mas/yr Dec.: 0.571±0.151[2] mas/yr |
Parallax (π) | 1.4348 ± 0.1018 mas[2] |
Distance | 2,300 ± 200 ly (700 ± 50 pc) |
|
Other designations |
---|
SS Vir, HIP 120212, HD 108105, BD+01° 2694, TYC 282-753-1 |
Database references |
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SIMBAD | data |
The location of SS Virginis is two degrees north-following of η Virginis (Eta Virginis, Zaniah).
References
- Citations
- References
Virgo constellation |
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Stars (list) | |
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Star clusters | |
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Nebulae | |
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Galaxies | Messier | |
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NGC | |
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Other |
- A1689-zD1
- Abell 1835 IR1916
- Arp 240 (NGC 5257 and NGC 5258)
- Arp 271 (NGC 5426 and NGC 5427)
- BR 1202-0725
- 3C 273
- 3C 279
- 3C 298
- 4C 04.42
- Eyes Galaxies
- GR 8
- IC 1011
- IC 1101
- IC 3258
- IC 3328
- IRAS 12212+0305
- IRAS 13197−1627
- M60-UCD1
- Markarian 50
- Markarian 1318
- PG 1216+069
- PG 1244+026
- PG 1254+047
- PG 1307+085
- PG 1416−129
- PG 1426+015
- PKS 1148-001
- PKS 1167+014
- PKS 1217+023
- PKS 1229−021
- PKS 1302−102
- PKS 1335−127
- PKS 1402+044
- PKS 1405−076
- QSO B1208+1011
- QSO B1243−072
- QSO B1246−057
- QSO B1331+170
- RXJ1242−11
- SMM J14011+0252
- UM 448
- UM 461
- UM 462
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Galaxy clusters | |
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Other |
- GRB 930131
- GRB 030328
- GRB 050408
- GRB 050801
- GRB 080310
- North Polar Spur
- SN 1960F
- SN 1981B
- SN 1990B
- SN 1990N
- SN 1991T
- SN 1991bg
- SN 1994D
- SN 1999br
- SN 2002cx
- SN 2007bi
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На других языках
- [en] SS Virginis
[es] SS Virginis
SS Virginis (SS Vir / HD 108105 / HIP 120212)[1] es una estrella variable en la constelación de Virgo. Se encuentra a aproximadamente 1820 años luz de distancia del Sistema Solar.[2]
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