HD 221525
 | |
| Observation data J2000.0
| |
|---|---|
| Constellation | Cepheus |
| Right ascension | 23h 27m 00.91338s[1] |
| Declination | 87° 18′ 27.0304″[1] |
| Apparent magnitude (V) | 5.56[2] |
| Characteristics | |
| Spectral type | A8III[3] or A7IV[4] |
| B−V color index | 0.250±0.004[2] |
| Absolute magnitude (MV) | 0.52[2] |
| Details | |
Myr | |
| Database references | |
| SIMBAD | data |
HD 221525 is a single
This object is an
References
- ^ .
- ^ S2CID 119257644.
- ^ doi:10.1086/192182.
- ^ doi:10.1086/129562.
- ^ a b c Jim Kaler. "HR 306 and HR 8938". Stars.astro.illinois.edu. Retrieved 2012-02-29.
- ^ "HD 221525". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2019-11-21.
- S2CID 14878976.
- ^ Calculation:
![{\displaystyle ({\sqrt[{5}]{100}})^{5.56-1.97}\approx 27.2}](https://wikimedia.org/api/rest_v1/media/math/render/svg/f795715ca3e37975405bd60f2cd736b0e6694457)
External links
- University of Illinois. Retrieved 2012-05-02.
- HD 221525 on
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