Draft:AFGL 4106
Binary star in the constellation Carina
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AFGL 4106, also known as HD 302821 is a binary star in the constellation Carina. The system consists of a post-red supergiant and a smaller, less evolved supergiant. The system is also surrounded by a large circumstellar envelope.[2]
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.jpg) VLT image of AFGL 4106 Credit: ESO/G. Tomassini et al. | |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Carina |
| Right ascension | 10h 23m 19.48s |
| Declination | −59° 32′ 04.6″ |
| Apparent magnitude (V) | 8.52 - 9.1[1] |
| Characteristics | |
| Primary | |
| Spectral type | A-F[2] |
| Secondary | |
| Spectral type | M[2] |
| Details | |
| Primary | |
| Radius | 209 ± 12[2] R☉ |
| Luminosity | 79,000 ± 1,800[2] L☉ |
| Temperature | 6,723 ± 196[2] K |
| Secondary | |
| Radius | 567 ± 99[2] R☉ |
| Luminosity | 38,000 ± 1,100[2] L☉ |
| Temperature | 3,394 ± 264[2] K |