All names: UCAC4 468-039938, Gaia DR2 3091902086868007808, WISE J083015.32+032447.4, HS 0827+0334, 2MASS J08301532+0324473, Gaia DR3 3091902086868007808, SDSS J083015.32+032447.3, WISEA J083015.32+032447.4, TIC 265136683, USNO-B1.0 0934-00180966, Gaia EDR3 3091902086868007808
| Parameter | Unit | Gaia EDR3 | Gaia DR2 | Stilism | Mukadam et al. 2004 | Simbad |
|---|---|---|---|---|---|---|
| Right ascension | 08 30 15.32 (0.05) | 08 30 15.32 (0.08) | 08 30 15.32 (0.05) | |||
| Declination | 03 24 47.45 (0.03) | 03 24 47.45 (0.05) | 03 24 47.40 (0.03) | |||
| Spectral type | ||||||
| Effective temperature | [K] | 12000.0 | ||||
| log(g) | [cgs] | |||||
| Mass | [M☉] | |||||
| log(Luminosity) | [L☉] | |||||
| Cooling age | [Gyr] | |||||
| log(H/He) | ||||||
| log(C/He) | ||||||
| log(Ca/He) | ||||||
| log(Ca/H) | ||||||
| Parallax | [mas] | 0.76 (0.07) | 0.80 (0.1) | 0.76 (0.07) | ||
| Distance | [pc] | 1321.08 (131) | 1242.70 (164) | 1321.00 (131) | ||
| Composition | ||||||
| Proper motion (right ascension) | [mas/yr] | -0.260969078 (0.07) | -0.056 (0.2) | -0.261 (0.07) | ||
| Proper motion (declination) | [mas/yr] | 3.123977444 (0.05) | 3.082 (0.1) | 3.124 (0.05) | ||
| Variability | NOV | |||||
| Magnetic | ||||||
| Bd | [MG] | |||||
| Infrared excess (disk) | ||||||
| Binarity | ||||||
| B magnitude | 17.10 | |||||
| V magnitude | ||||||
| R magnitude | 16.10 | |||||
| I magnitude | ||||||
| J magnitude | 15.29 (0.06) | |||||
| H magnitude | 14.93 (0.07) | |||||
| K magnitude | 14.52 (0.1) | |||||
| u magnitude | ||||||
| g magnitude | ||||||
| r magnitude | ||||||
| i magnitude | ||||||
| z magnitude | ||||||
| G magnitude | 16.58 (0.006) | 16.59 | 16.58 (0.003) | |||
| BP magnitude | 17.04 (0.006) | 17.05 | ||||
| RP magnitude | 15.98 (0.004) | 15.97 | ||||
| Pan g magnitude | ||||||
| Pan r magnitude | ||||||
| Pan i magnitude | ||||||
| Pan z magnitude | ||||||
| Pan y magnitude | ||||||
| E(B-V) | 0.028 | |||||
* Constant surface field
Spectra without link are available upon request
The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour (Université de Montréal) and Dr. Simon Blouin (University of Victoria). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.