All names: Gaia DR3 2799839702239434240, SDSS J002509.57+213736.6, Gaia DR2 2799839702239434240, Gaia EDR3 2799839702239434240, WDJ00259.41+213736.27, WDJ002509.41+213736.28, NLTT 1312, USNO-B1.0 1116-00005455, SDSS J002509.58+213736.7, LP 405-9, LSPM J0025+2137
Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 |
---|---|---|---|---|---|---|---|---|---|---|---|
Right ascension | 00 25 09.71 (0.2) | 00 25 09.70 | 00 25 09.71 | 00 25 09.41 (0.2) | 00 25 09.70 | ||||||
Declination | 21 37 36.95 (0.1) | 21 37 36.93 | 21 37 36.95 | 21 37 36.27 (0.1) | 21 37 36.93 | ||||||
Spectral type | DC | DA | DA | ||||||||
Effective temperature | [K] | 5537.0 (54) | 5908.0 | 5660.0 | 6061.0 (98) | ||||||
log(g) | [cgs] | 7.99 (0.03) | 8.15 | 8.00 | 8.26 (0.03) | ||||||
Mass | [M☉] | 0.561 (0.02) | 0.68 | 0.57 | 0.755 (0.03) | ||||||
log(Luminosity) | [L☉] | ||||||||||
Cooling age | [Gyr] | 3.4160 | 3.4510 | ||||||||
log(H/He) | |||||||||||
log(C/He) | |||||||||||
log(Ca/He) | |||||||||||
log(Ca/H) | |||||||||||
log(N/He) | |||||||||||
log(O/He) | |||||||||||
log(Na/He) | |||||||||||
log(Mg/He) | |||||||||||
log(Al/He) | |||||||||||
log(Si/He) | |||||||||||
log(P/He) | |||||||||||
log(S/He) | |||||||||||
log(Cl/He) | |||||||||||
log(Sc/He) | |||||||||||
log(Ti/He) | |||||||||||
log(V/He) | |||||||||||
log(Cr/He) | |||||||||||
log(Mn/He) | |||||||||||
log(Fe/He) | |||||||||||
log(Co/He) | |||||||||||
log(Ni/He) | |||||||||||
log(Cu/He) | |||||||||||
log(Zn/He) | |||||||||||
log(Ga/He) | |||||||||||
log(Ge/He) | |||||||||||
log(Sr/He) | |||||||||||
Parallax | [mas] | 13.63 (0.2) | 13.21 (0.3) | 13.63 | 13.63 (0.2) | 13.21 (0.3) | |||||
Distance | [pc] | 73.37 (1) | 75.68 (2) | 73.37 | 73.37 (1) | 75.68 (2) | |||||
Composition | He | ||||||||||
Proper motion (right ascension) | [mas/yr] | 257.4039265 (0.2) | 257.1414432 (0.6) | 257.404 (0.2) | 257.1414432 | ||||||
Proper motion (declination) | [mas/yr] | 42.84484765 (0.2) | 42.31208249 (0.4) | 42.845 (0.2) | 42.31208249 | ||||||
Variability | |||||||||||
Magnetic | |||||||||||
Bd | [MG] | ||||||||||
Infrared excess (disk) | |||||||||||
Binarity | |||||||||||
B magnitude | 19.90 | ||||||||||
V magnitude | |||||||||||
R magnitude | 19.10 | ||||||||||
I magnitude | |||||||||||
J magnitude | |||||||||||
H magnitude | |||||||||||
K magnitude | |||||||||||
u magnitude | 20.09 (0.05) | 20.09 (0.05) | |||||||||
g magnitude | 19.06 (0.01) | 19.06 (0.01) | |||||||||
r magnitude | 18.68 (0.01) | 18.68 (0.01) | |||||||||
i magnitude | 18.54 (0.01) | 18.54 (0.01) | |||||||||
z magnitude | 18.45 (0.03) | 18.45 (0.03) | |||||||||
G magnitude | 18.70 (0.03) | 18.72 | 18.70 | 18.70 (0.003) | 18.72 | ||||||
BP magnitude | 19.01 (0.03) | 19.04 | 19.04 | ||||||||
RP magnitude | 18.24 (0.02) | 18.22 | 18.22 | ||||||||
Pan g magnitude | 19.03 (0.01) | ||||||||||
Pan r magnitude | 18.68 (0.006) | ||||||||||
Pan i magnitude | 18.56 (0.007) | ||||||||||
Pan z magnitude | 18.54 (0.01) | ||||||||||
Pan y magnitude | 18.49 (0.04) | ||||||||||
E(B-V) | 0.004 |
* 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.