All names: [ZEH2003] RX J0827.0+2844 1, 1RXS J082704.9+284411, PG 0824+288, SDSS J082705.05+284402.7, 2RE J082704+284407, WDS J08271+2844AaAb, 2EUVE J0827+28.7, 1SWASP J082705.14+284402.6, RE J082704+284403, USNO-B1.0 1187-00163669, WD 0824+289, Gaia DR3 707301472073850112, WDS J08271+2844A, ** FAR 6AaAb, TIC 3575678, CGCS 6293, WD 0824+288, GALEX J082705.0+284402, RE J0827+284, Gaia DR2 707301472073850112, 2MASS J08270508+2844024, 2RE J0827+284, RX J0827.0+2844, RBS 701, HS 0824+2854, ** FAR 6A, WDS J08271+2844AB, Gaia EDR3 707301472073850112, PG 0824+289, [TI98] 0824+2853, EUVE J0827+28.7, RE J0827+28
| Parameter | Unit | Gaia EDR3 | Gaia DR2 | Stilism | Gianninas et al. 2011 | Liebert et al. 2005 | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 27 05.03 (0.09) | 08 27 05.03 (0.1) | 08 27 05.05 (0.09) | 08 27 04.32 | ||||
| Declination | 28 44 02.57 (0.07) | 28 44 02.57 (0.08) | 28 44 02.78 (0.07) | 28 43 59.52 | ||||
| Spectral type | DA | DA+dC | DA | |||||
| Effective temperature | [K] | 47600.0 (823) | 50700.0 (1288) | |||||
| log(g) | [cgs] | 7.83 (0.06) | 7.74 (0.08) | |||||
| Mass | [M☉] | 0.61 (0.03) | 0.58 (0.03) | |||||
| log(Luminosity) | [L☉] | 0.24 | ||||||
| Cooling age | [Gyr] | 0.0023 | ||||||
| log(H/He) | ||||||||
| log(C/He) | ||||||||
| log(Ca/He) | ||||||||
| log(Ca/H) | ||||||||
| log(C/H) | ||||||||
| log(N/H) | ||||||||
| log(O/H) | ||||||||
| log(Na/H) | ||||||||
| log(Mg/H) | ||||||||
| log(Al/H) | ||||||||
| log(Si/H) | ||||||||
| log(P/H) | ||||||||
| log(S/H) | ||||||||
| log(Sc/H) | ||||||||
| log(Ti/H) | ||||||||
| log(Cr/H) | ||||||||
| log(Mn/H) | ||||||||
| log(Fe/H) | ||||||||
| log(Ni/H) | ||||||||
| Parallax | [mas] | 6.61 (0.1) | 6.56 (0.2) | 6.61 (0.1) | ||||
| Distance | [pc] | 151.24 (3) | 152.46 (4) | 124.00 | 131.00 | 151.24 (3) | ||
| Composition | H | |||||||
| Proper motion (right ascension) | [mas/yr] | -17.71680297 (0.1) | -17.811 (0.2) | -17.717 (0.1) | ||||
| Proper motion (declination) | [mas/yr] | -13.29653711 (0.08) | -13.164 (0.1) | -13.297 (0.08) | ||||
| Variability | ||||||||
| Magnetic | ||||||||
| Bd | [MG] | |||||||
| Infrared excess (disk) | ||||||||
| Binarity | yes | |||||||
| B magnitude | 14.73 | |||||||
| V magnitude | 14.27 | 14.27 | ||||||
| R magnitude | ||||||||
| I magnitude | ||||||||
| J magnitude | 12.42 (0.03) | |||||||
| H magnitude | 11.80 (0.03) | |||||||
| K magnitude | 11.65 (0.03) | |||||||
| u magnitude | 14.23 (0.003) | 14.23 | ||||||
| g magnitude | 14.53 (0.003) | 14.53 | ||||||
| r magnitude | 15.30 (0.01) | 15.30 | ||||||
| i magnitude | 14.26 (0.004) | 14.26 | ||||||
| z magnitude | 14.10 (0.004) | 14.10 | ||||||
| G magnitude | 14.08 (0.003) | 14.08 | 14.08 (0.003) | |||||
| BP magnitude | 14.25 (0.003) | 14.21 | ||||||
| RP magnitude | 13.67 (0.003) | 13.68 | ||||||
| Pan g magnitude | ||||||||
| Pan r magnitude | ||||||||
| Pan i magnitude | ||||||||
| Pan z magnitude | ||||||||
| Pan y magnitude | ||||||||
| E(B-V) | 0.006 | |||||||
* 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.