All names: 2SLAQ J002248.03+004229.0, SDSS J002248.03+004229.0, SDSS J002248.03+004228.9, SDSS J002248.03+004229.1, Gaia DR2 2546893650655427840, Gaia EDR3 2546893650655427840, USNO-B1.0 0907-00004192, GALEX J002248.0+004229, Gaia DR3 2546893650655427840, SDSS J002248.03+004228.8
Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | Gaia DR2 | Stilism | Simbad | Eisenstein et al. 2006 | Kleinman et al. 2013 | Vincent et al. 2023 |
---|---|---|---|---|---|---|---|---|---|---|---|
Right ascension | 00 22 48.06 (0.4) | 00 22 48.03 | 00 22 48.06 (0.6) | 00 22 48.03 (0.4) | 00 22 48.03 | 00 22 48.03 | |||||
Declination | 00 42 28.20 (0.3) | 00 42 28.99 | 00 42 28.23 (0.4) | 00 42 29.10 (0.3) | 00 42 29.09 | 00 42 29.06 | |||||
Spectral type | DA | DA | SDB: | DA | DA | ||||||
Effective temperature | [K] | 6355.0 | 7242.0 (154) | 6992.0 (151) | |||||||
log(g) | [cgs] | 7.38 | 6.41 (0.6) | 6.54 (0.6) | |||||||
Mass | [M☉] | 0.298 | 0.219 (0.03) | ||||||||
log(Luminosity) | [L☉] | ||||||||||
Cooling age | [Gyr] | 0.9923 | |||||||||
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] | 4.59 (0.5) | 3.87 (0.8) | 4.59 (0.5) | |||||||
Distance | [pc] | 217.93 (25) | 258.40 (50) | 217.93 (25) | |||||||
Composition | H | ||||||||||
Proper motion (right ascension) | [mas/yr] | 28.8595955 (0.6) | 30.39398842 (2) | 28.86 (0.6) | 26.8 | ||||||
Proper motion (declination) | [mas/yr] | -55.97156148 (0.5) | -56.69373015 (0.9) | -55.972 (0.5) | -54.4 | ||||||
Variability | |||||||||||
Magnetic | |||||||||||
Bd | [MG] | ||||||||||
Infrared excess (disk) | |||||||||||
Binarity | |||||||||||
B magnitude | 20.70 | ||||||||||
V magnitude | |||||||||||
R magnitude | 19.80 | ||||||||||
I magnitude | |||||||||||
J magnitude | |||||||||||
H magnitude | |||||||||||
K magnitude | |||||||||||
u magnitude | 20.80 (0.06) | 20.80 (0.06) | 20.91 (0.09) | 20.90 (0.09) | |||||||
g magnitude | 20.29 (0.02) | 20.29 (0.02) | 20.32 (0.03) | 20.31 (0.02) | |||||||
r magnitude | 20.06 (0.02) | 20.06 (0.02) | 20.12 (0.03) | 20.10 (0.03) | |||||||
i magnitude | 19.99 (0.03) | 19.99 (0.03) | 19.95 (0.03) | 19.94 (0.03) | |||||||
z magnitude | 20.14 (0.1) | 20.14 (0.1) | 20.25 (0.1) | 20.21 (0.1) | |||||||
G magnitude | 20.05 (0.06) | 20.10 | 20.05 (0.005) | ||||||||
BP magnitude | 20.30 (0.06) | 20.12 | |||||||||
RP magnitude | 19.79 (0.06) | 19.66 | |||||||||
Pan g magnitude | 20.34 (0.02) | ||||||||||
Pan r magnitude | 20.08 (0.02) | ||||||||||
Pan i magnitude | 20.03 (0.01) | ||||||||||
Pan z magnitude | 20.05 (0.05) | ||||||||||
Pan y magnitude | 19.77 (0.07) | ||||||||||
E(B-V) | 0.018 |
* 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.