HD 194244
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| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Aquila[1] |
| Right ascension | Template:RA[2] |
| Declination | Template:DEC[2] |
| Apparent magnitude (V) | 6.14[3] |
| Characteristics | |
| Evolutionary stage | main sequence[4] |
| Spectral type | B9V[5] |
| U−B Template:Engvar | −0.14[3] |
| B−V Template:Engvar | −0.04[3] |
| Astrometry | |
| Radial velocity (Rv) | Script error: No such module "val".[6] km/s |
| Proper motion (μ) | RA: +7.834[2] mas/yr Dec.: +4.935[2] mas/yr |
| Parallax (π) | 4.0349±0.0.428 mas[2] |
| Distance | Template:Rnd ± Template:Rnd ly (Template:Rnd ± Template:Rnd pc) |
| Absolute magnitude (MV) | −0.80[1] |
| Details | |
| Mass | 2.5[7] Template:Solar mass |
| Radius | 4.9[7] Template:Solar radius |
| Luminosity | 238[7] Template:Solar luminosity |
| Surface gravity (log g) | 3.48[7] cgs |
| Temperature | 10,233[7] K |
| Metallicity [Fe/H] | −0.22[8] dex |
| Rotation | 27.15[9] |
| Rotational velocity (v sin i) | 222[4] km/s |
| Age | 243[10] Myr |
| Metallicity [Fe/H] | {{{metal_fe2}}} dex |
| Other designations | |
| BD+00°4495, HD 194244, HIP 100664, HR 7803, SAO 125769 | |
| Database references | |
| SIMBAD | data |
Script error: No such module "Check for unknown parameters".
HD 194244 is a variable Be star[11] in the equatorial constellation of Aquila. With an apparent magnitude of 6.14, according to the Bortle scale it is faintly visible to the naked eye from rural skies on a dark night.
References
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- ↑ a b Script error: No such module "citation/CS1".
- ↑ a b c d e Template:Cite Gaia DR3
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- ↑ a b c d e Script error: No such module "Citation/CS1".
- ↑ Script error: No such module "citation/CS1".
- ↑ Script error: No such module "citation/CS1".
- ↑ Script error: No such module "citation/CS1".
- ↑ Script error: No such module "citation/CS1".
Script error: No such module "Check for unknown parameters".