Rho Arietis
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The Bayer designation Rho Arietis (ρ Ari / ρ Arietis) is shared by three stars, ρ¹ Arietis through ρ³ Arietis, in the constellation Aries. In some instances ρ³ Ari is called simply ρ Ari.
[edit] ρ¹ Arietis
| Observation data Epoch J2000.0 |
|
|---|---|
| Constellation (pronunciation) |
Aries |
| Right ascension | 02h 54m 55.18s |
| Declination | +17° 44' 05.0" |
| Apparent magnitude (V) | +7.01 |
| Absolute magnitude (V) | +2.10 |
| Distance | 313 ± 34 ly (96 ± 11 pc) |
| Spectral type | A3 |
| Other designations | |
Rho-1 Arietis is a white A-type star with an apparent magnitude of +7.01. It is approximately 313 light years from Earth.
[edit] ρ² Arietis
| Observation data Epoch J2000.0 |
|
|---|---|
| Constellation (pronunciation) |
Aries |
| Right ascension | 02h 55m 48.5s |
| Declination | +18° 19' 54" |
| Apparent magnitude (V) | +5.76 |
| Absolute magnitude (V) | +0.29 |
| Distance | 404 ± 44 ly (124 ± 14 pc) |
| Spectral type | M6-III: |
| Other designations | |
Rho-2 Arietis is a M-type red giant with a mean apparent magnitude of +5.76. It is approximately 404 light years from Earth. It is classified as a semiregular variable star and its brightness varies from magnitude +5.62 to +6.01 with a period of 30 days. It is also known by its variable star designation, RZ Arietis.
[edit] ρ³ Arietis
| Observation data Epoch J2000.0 |
|
|---|---|
| Constellation (pronunciation) |
Aries |
| Right ascension | 02h 56m 26.1s |
| Declination | +18° 01' 23" |
| Apparent magnitude (V) | +5.58 |
| Absolute magnitude (V) | +2.86 |
| Distance | 115 ± 4 ly (35 ± 1 pc) |
| Spectral type | F6V |
| Other designations | |
Rho-3 Arietis is a yellow-white F-type main sequence dwarf with an apparent magnitude of +5.58. It is approximately 115 light years from Earth.
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