HD 197036
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Cygnus[1] |
| Right ascension | Template:RA[2] |
| Declination | Template:DEC[2] |
| Apparent magnitude (V) | 6.61±0.01[3] |
| Characteristics | |
| Spectral type | B5 IV[4] |
| U−B Template:Engvar | -0.59[5][3] |
| B−V Template:Engvar | −0.07[3] |
| Astrometry | |
| Radial velocity (Rv) | −15±2[6] km/s |
| Proper motion (μ) | RA: +3.737 mas/yr[2] Dec.: −1.586 mas/yr[2] |
| Parallax (π) | 2.4923±0.0284 mas[2] |
| Distance | Template:Rnd ± Template:Rnd ly (Template:Rnd ± Template:Rnd pc) |
| Absolute magnitude (MV) | −1.15[1] |
| Details | |
| Mass | 4.21[7] Template:Solar mass |
| Radius | 5.17[8] Template:Solar radius |
| Luminosity | 379[1] Template:Solar luminosity |
| Surface gravity (log g) | 3.52[7] cgs |
| Temperature | 13,399[9] K |
| Metallicity [Fe/H] | −0.03[7] dex |
| Rotational velocity (v sin i) | 135[10] km/s |
| Metallicity [Fe/H] | {{{metal_fe2}}} dex |
| Other designations | |
| Template:Odlist | |
| Database references | |
| SIMBAD | data |
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HD 197036 is a single star in the northern constellation Cygnus. It has an absolute magnitude of −1.15[1] and an apparent magnitude of 6.61,[3] below the max naked eye visibility. Located 1,310 light years away, it is approaching Earth with a heliocentric radial velocity of Script error: No such module "val"..[6]
HD 197036 is a bluish white subgiant star of the spectral type B5IV, and has an angular diameter of Script error: No such module "val"..[11] This yields a radius of Script error: No such module "val".[8] at its estimated distance. At present it has 4.21 times the mass of the Sun[7] and shines at 379 times the luminosity of the Sun[1] from its photosphere at an effective temperature of 13,399 K,[9] giving it a bluish white hue. Like many hot stars, it spins rapidly with a projected rotational velocity of 135 km/s−1[10] and has a near solar metallicity.[7]
References
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