All names: J0807+2557, GALEX J080758.0+255710, Gaia DR3 681934703732973824, SDSS J080757.97+255710.3, SDSS J080757.96+255710.3, Gaia EDR3 681934703732973824, SDSS J080757.97+255710.4, WD 0804+260, Gaia DR2 681934703732973824, WDJ080757.98+255710.41
Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Caron et al. 2023 | Kilic et al. 2020 | MWDD H | Gaia DR2 | Stilism | Tremblay et al. 2011 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Right ascension | 08 07 57.91 (0.2) | 08 07 57.97 | 08 07 57.91 (0.2) | 08 07 57.91 | 08 07 57.98 (0.2) | 08 07 57.91 | 08 07 57.97 | 08 07 57.53 | 08 07 57.97 | ||||||||
Declination | 25 57 09.87 (0.1) | 25 57 10.35 | 25 57 09.89 (0.1) | 25 57 09.87 | 25 57 10.41 (0.1) | 25 57 09.89 | 25 57 10.34 | 25 57 08.64 | 25 57 10.34 | ||||||||
Spectral type | DA | DA | DA | DA | DA | DA | DA | DA | DA | DA | DA | ||||||
Effective temperature | [K] | 6751.0 (37) | 6729.0 (38) | 6587.0 | 6270.0 (110) | 6532.0 (156) | 7078.0 (60) | 6659.0 (51) | |||||||||
log(g) | [cgs] | 8.04 (0.03) | 8.03 (0.03) | 7.99 | 7.51 (0.3) | 7.88 (0.05) | 8.75 (0.2) | 8.05 (0.1) | |||||||||
Mass | [M☉] | 0.617 (0.03) | 0.611 (0.03) | 0.583 | 0.37 (0.09) | 0.522 (0.04) | 0.62 (0.08) | ||||||||||
log(Luminosity) | [L☉] | ||||||||||||||||
Cooling age | [Gyr] | 1.8400 | 1.7320 | 2.3442 | |||||||||||||
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] | 9.89 (0.2) | 10.38 (0.3) | 10.38 (0.3) | 9.89 | 9.89 (0.2) | 10.38 (0.3) | ||||||||||
Distance | [pc] | 101.15 (2) | 96.34 (3) | 96.39 (3) | 101.15 | 101.15 (2) | 96.39 (3) | ||||||||||
Composition | H | H | H | ||||||||||||||
Proper motion (right ascension) | [mas/yr] | -60.39913496 (0.2) | -60.25095807 (0.4) | -60.399 (0.2) | -60.251 | -57.3 | |||||||||||
Proper motion (declination) | [mas/yr] | -33.54252276 (0.1) | -33.75125877 (0.3) | -33.543 (0.1) | -33.751 | -33.2 | |||||||||||
Variability | |||||||||||||||||
Magnetic | |||||||||||||||||
Bd | [MG] | ||||||||||||||||
Infrared excess (disk) | |||||||||||||||||
Binarity | |||||||||||||||||
B magnitude | |||||||||||||||||
V magnitude | |||||||||||||||||
R magnitude | |||||||||||||||||
I magnitude | |||||||||||||||||
J magnitude | 17.81 (0.02) | ||||||||||||||||
H magnitude | 17.62 (0.07) | ||||||||||||||||
K magnitude | 17.73 (0.1) | ||||||||||||||||
u magnitude | 19.36 (0.02) | 19.36 (0.02) | 19.36 (0.03) | 19.36 (0.03) | 19.36 (0.03) | 19.36 | 19.37 (0.03) | ||||||||||
g magnitude | 18.77 (0.008) | 18.77 (0.008) | 18.77 (0.008) | 18.77 (0.02) | 18.77 | 18.78 (0.02) | |||||||||||
r magnitude | 18.62 (0.009) | 18.62 (0.009) | 18.62 (0.009) | 18.61 (0.01) | 18.61 | 18.62 (0.01) | |||||||||||
i magnitude | 18.48 (0.01) | 18.48 (0.01) | 18.48 (0.01) | 18.47 (0.01) | 18.47 | 18.48 (0.02) | |||||||||||
z magnitude | 18.46 (0.03) | 18.46 (0.03) | 18.46 (0.03) | 18.47 (0.03) | 18.46 | 18.47 (0.03) | |||||||||||
G magnitude | 18.57 (0.03) | 18.59 | 18.57 | 18.57 (0.003) | 18.59 | ||||||||||||
BP magnitude | 18.79 (0.03) | 18.81 | 18.81 | ||||||||||||||
RP magnitude | 18.18 (0.02) | 18.17 | 18.17 | ||||||||||||||
Pan g magnitude | 18.76 (0.004) | 18.76 (0.005) | |||||||||||||||
Pan r magnitude | 18.63 (0.006) | 18.63 (0.006) | |||||||||||||||
Pan i magnitude | 18.52 (0.004) | 18.52 (0.004) | |||||||||||||||
Pan z magnitude | 18.51 (0.01) | 18.51 (0.01) | |||||||||||||||
Pan y magnitude | 18.52 (0.02) | 18.52 (0.03) | |||||||||||||||
E(B-V) | 0.003 |
* 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.