All names: PG 0302+028, Gaia EDR3 1068931460633216, PG 0302+027, [HH86] 0302+027A, GD 41, US 3611, 1RXS J030437.1+025706, GSC 00058-00900, GEN# +6.10060041, LP 591-260, USNO-B1.0 0929-00042439, EUVE J0304+02.9, 2EUVE J0304+02.9, [ZEH2003] RX J0304.6+0257 1, 2MASS J03043733+0256578, GALEX J030437.2+025657, LSPM J0304+0256, LAMOST J030437.29+025656.6, Feige 31, EGGR 270, FB 28, WD0302+027, PB 6996, RX J0304.6+0257, uvby98 610060041, TIC 328298989, Gaia DR2 1068931460633216, UBV M 43044, WD 0302+027, Gaia DR3 1068931460633216, WD 0302+02
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | MWDD H | Gaia DR2 | Stilism | Gianninas et al. 2011 | Koester et al. 2009 | Koester et al. 2001 | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 03 04 37.28 (0.04) | 03 04 37.28 (0.05) | 03 04 37.40 | 03 04 37.28 | 03 04 37.32 (0.04) | 03 04 37.13 | ||||||
| Declination | 02 56 55.68 (0.04) | 02 56 55.75 (0.05) | 02 56 57.00 | 02 56 55.68 | 02 56 58.04 (0.04) | 02 56 56.40 | ||||||
| Spectral type | DA | DA | DA | DA | DA1.4 | DAWK | ||||||
| Effective temperature | [K] | 29356.0 | 35790.0 (540) | 35270.0 (61) | 35130.0 (126) | 39060.0 (1781) | ||||||
| log(g) | [cgs] | 7.55 | 7.80 (0.05) | 7.77 (0.009) | 8.02 (0.02) | 7.88 (0.03) | ||||||
| Mass | [M☉] | 0.441 | 0.57 (0.02) | 0.67 | 0.607 (0.02) | |||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | 0.0102 | ||||||||||
| 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] | 7.56 (0.05) | 7.52 (0.07) | 7.56 | 7.56 (0.05) | |||||||
| Distance | [pc] | 132.26 (0.9) | 133.04 (1) | 127.00 | 132.26 | 132.26 (0.9) | ||||||
| Composition | H | H | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -44.37735388 (0.05) | -44.48558088 (0.1) | -44.377 (0.05) | ||||||||
| Proper motion (declination) | [mas/yr] | -147.3552465 (0.04) | -147.4288047 (0.1) | -147.355 (0.04) | ||||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | ||||||||||||
| B magnitude | 14.68 | |||||||||||
| V magnitude | 14.97 | 14.97 | ||||||||||
| R magnitude | 15.20 | |||||||||||
| I magnitude | ||||||||||||
| J magnitude | 15.54 (0.05) | |||||||||||
| H magnitude | 15.94 (0.1) | |||||||||||
| K magnitude | 15.85 (0.2) | |||||||||||
| u magnitude | ||||||||||||
| g magnitude | ||||||||||||
| r magnitude | ||||||||||||
| i magnitude | ||||||||||||
| z magnitude | ||||||||||||
| G magnitude | 14.88 (0.002) | 14.90 | 14.88 | 14.88 (0.003) | ||||||||
| BP magnitude | 14.73 (0.002) | 14.69 | ||||||||||
| RP magnitude | 15.19 (0.003) | 15.19 | ||||||||||
| Pan g magnitude | 14.71 (0.005) | |||||||||||
| Pan r magnitude | 15.15 (0.006) | |||||||||||
| Pan i magnitude | 15.52 (0.002) | |||||||||||
| Pan z magnitude | 15.82 (0.003) | |||||||||||
| Pan y magnitude | 15.99 (0.004) | |||||||||||
| E(B-V) | 0.008 | |||||||||||
* 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.