All names: SDSS J082819.56+122919.5, SDSS J082819.57+122919.5, Gaia DR2 650808255401528576, Gaia DR3 650808255401528576, GALEX J082819.6+122919, SDSS J082819.57+122919.4, Gaia EDR3 650808255401528576
Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Bedard et al. 2020 | MWDD H | Gaia DR2 | Stilism | Simbad | Kleinman et al. 2013 | Vincent et al. 2023 |
---|---|---|---|---|---|---|---|---|---|---|---|
Right ascension | 08 28 19.57 (0.3) | 08 28 19.57 | 08 28 19.57 (0.4) | 08 28 19.57 (0.3) | 08 28 19.57 | ||||||
Declination | 12 29 19.45 (0.2) | 12 29 19.51 | 12 29 19.46 (0.2) | 12 29 19.67 (0.2) | 12 29 19.54 | ||||||
Spectral type | DA | DA | DA | DA | DA | ||||||
Effective temperature | [K] | 33096.0 (642) | 24125.0 | 33245.0 (658) | |||||||
log(g) | [cgs] | 7.73 (0.1) | 5.91 | 7.76 (0.1) | |||||||
Mass | [M☉] | 0.52 (0.05) | 0.107 | 0.544 (0.06) | |||||||
log(Luminosity) | [L☉] | -0.54 (0.09) | |||||||||
Cooling age | [Gyr] | 0.0062 (0.0008) | |||||||||
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] | 1.34 (0.4) | 0.33 (0.5) | 1.34 (0.4) | |||||||
Distance | [pc] | 748.86 (200) | 2987.24 (4161) | 748.84 (200) | |||||||
Composition | H | H | |||||||||
Proper motion (right ascension) | [mas/yr] | 2.507873409 (0.4) | 0.312688534 (0.8) | 2.508 (0.4) | |||||||
Proper motion (declination) | [mas/yr] | -13.57101964 (0.2) | -13.26266546 (0.5) | -13.571 (0.2) | |||||||
Variability | |||||||||||
Magnetic | |||||||||||
Bd | [MG] | ||||||||||
Infrared excess (disk) | |||||||||||
Binarity | |||||||||||
B magnitude | |||||||||||
V magnitude | |||||||||||
R magnitude | |||||||||||
I magnitude | |||||||||||
J magnitude | |||||||||||
H magnitude | |||||||||||
K magnitude | |||||||||||
u magnitude | 19.02 (0.02) | 19.04 (0.03) | 19.04 (0.03) | ||||||||
g magnitude | 19.28 (0.01) | 19.29 (0.02) | 19.29 (0.02) | ||||||||
r magnitude | 19.73 (0.02) | 19.72 (0.03) | 19.72 (0.03) | ||||||||
i magnitude | 20.13 (0.03) | 20.14 (0.03) | 20.14 (0.03) | ||||||||
z magnitude | 20.25 (0.1) | 20.23 (0.1) | 20.23 (0.1) | ||||||||
G magnitude | 19.54 (0.03) | 19.58 | 19.54 (0.005) | ||||||||
BP magnitude | 19.44 (0.03) | 19.36 | |||||||||
RP magnitude | 19.85 (0.07) | 19.72 | |||||||||
Pan g magnitude | 19.36 (0.008) | ||||||||||
Pan r magnitude | 19.78 (0.007) | ||||||||||
Pan i magnitude | 20.14 (0.01) | ||||||||||
Pan z magnitude | 20.38 (0.02) | ||||||||||
Pan y magnitude | 20.41 (0.3) | ||||||||||
E(B-V) | 0.032 |
* 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.