All names: UCAC4 438-003726, Gaia DR3 5187346124402986752, USNO-B1.0 0875-00044059, TIC 439868155, Gaia EDR3 5187346124402986752, HBQS 0250-0237, WD 0250-026, 2MASS J02525100-0225179, KUV 02503-0238, US 3262, WDJ025251.00-022517.99, WISE J025250.95-022518.0, PB 6912, Gaia DR2 5187346124402986752, FBS 0250-026, SDSS J025250.98-022517.9, CHSS 3924
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | MWDD H | Gaia DR2 | Stilism | Gianninas et al. 2011 | Koester et al. 2009 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 02 52 50.97 (0.03) | 02 52 50.97 (0.04) | 02 52 50.97 | 02 52 51.00 (0.03) | 02 52 50.97 | 02 52 50.74 | ||||||
| Declination | -02 25 17.76 (0.03) | -02 25 17.77 (0.04) | -02 25 17.76 | -02 25 17.98 (0.03) | -02 25 17.77 | -02 25 15.60 | ||||||
| Spectral type | DA | DA | DA | DA3.3 | DA | |||||||
| Effective temperature | [K] | 14996.0 | 15460.0 (254) | 15315.0 (23) | 14775.0 (151) | |||||||
| log(g) | [cgs] | 7.96 | 8.00 (0.05) | 7.80 (0.005) | 7.94 (0.009) | |||||||
| Mass | [M☉] | 0.592 | 0.61 (0.03) | 0.577 (0.007) | ||||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | 0.1863 | ||||||||||
| 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] | 19.55 (0.03) | 19.66 (0.06) | 19.55 | 19.55 (0.03) | 19.66 (0.06) | ||||||
| Distance | [pc] | 51.15 (0.09) | 50.87 (0.1) | 50.00 | 51.15 | 51.15 (0.09) | 50.87 (0.1) | |||||
| Composition | H | H | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -29.18797902 (0.04) | -29.12913378 (0.09) | -29.188 (0.04) | -29.12913378 | |||||||
| Proper motion (declination) | [mas/yr] | 14.1398924 (0.03) | 14.40917598 (0.1) | 14.14 (0.04) | 14.40917598 | |||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | ||||||||||||
| B magnitude | 14.82 (0.05) | |||||||||||
| V magnitude | 14.73 | 14.72 (0.04) | ||||||||||
| R magnitude | 13.35 (0.9) | |||||||||||
| I magnitude | ||||||||||||
| J magnitude | 15.14 (0.04) | |||||||||||
| H magnitude | 15.12 (0.08) | |||||||||||
| K magnitude | 15.04 (0.1) | |||||||||||
| u magnitude | 14.89 (0.01) | 14.92 (0.005) | ||||||||||
| g magnitude | 14.67 (0.03) | 14.66 (0.004) | ||||||||||
| r magnitude | 14.91 (0.03) | 14.93 (0.004) | ||||||||||
| i magnitude | 15.09 (0.04) | 15.17 (0.005) | ||||||||||
| z magnitude | 15.45 (0.03) | 15.45 (0.007) | ||||||||||
| G magnitude | 14.79 (0.002) | 14.81 | 14.79 | 14.79 (0.003) | 14.81 | |||||||
| BP magnitude | 14.75 (0.002) | 14.74 | 14.74 | |||||||||
| RP magnitude | 14.90 (0.002) | 14.91 | 14.91 | |||||||||
| Pan g magnitude | 14.66 (0.007) | |||||||||||
| Pan r magnitude | 14.94 (0.002) | |||||||||||
| Pan i magnitude | 15.21 (0.004) | |||||||||||
| Pan z magnitude | 15.45 (0.002) | |||||||||||
| Pan y magnitude | 15.61 (0.003) | |||||||||||
| E(B-V) | 0.001 | |||||||||||
* 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.