All names: USNO-B1.0 1049-00172847, SDSS J084938.85+145503.1, SDSS J084938.85+145503.2, GALEX J084938.8+145503, SDSS J084938.84+145503.2, Gaia EDR3 609715515845349888, SDSS J084938.84+145503.1, WD 0846+151, Gaia DR3 609715515845349888, Gaia DR2 609715515845349888
Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | Gaia DR2 | Stilism | Simbad | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
---|---|---|---|---|---|---|---|---|---|---|---|
Right ascension | 08 49 38.81 (0.2) | 08 49 38.85 | 08 49 38.81 (0.3) | 08 49 38.86 (0.2) | 08 49 39.05 | 08 49 38.85 | |||||
Declination | 14 55 03.25 (0.1) | 14 55 03.19 | 14 55 03.24 (0.2) | 14 55 03.18 (0.1) | 14 55 00.48 | 14 55 03.20 | |||||
Spectral type | DA | DA | ? | DA | DA | ||||||
Effective temperature | [K] | 8762.0 | 8649.0 (68) | ||||||||
log(g) | [cgs] | 8.18 | 8.60 (0.1) | ||||||||
Mass | [M☉] | 0.707 | 0.967 (0.06) | ||||||||
log(Luminosity) | [L☉] | ||||||||||
Cooling age | [Gyr] | 1.1050 | |||||||||
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] | 6.53 (0.3) | 6.60 (0.4) | 6.53 (0.3) | |||||||
Distance | [pc] | 153.06 (6) | 151.59 (9) | 153.06 (6) | |||||||
Composition | H | ||||||||||
Proper motion (right ascension) | [mas/yr] | -52.50512228 (0.3) | -52.03244122 (0.6) | -52.505 (0.3) | |||||||
Proper motion (declination) | [mas/yr] | 4.041646901 (0.2) | 3.661905455 (0.4) | 4.042 (0.2) | |||||||
Variability | |||||||||||
Magnetic | |||||||||||
Bd | [MG] | ||||||||||
Infrared excess (disk) | |||||||||||
Binarity | |||||||||||
B magnitude | 19.00 | ||||||||||
V magnitude | |||||||||||
R magnitude | 18.90 | ||||||||||
I magnitude | |||||||||||
J magnitude | |||||||||||
H magnitude | |||||||||||
K magnitude | |||||||||||
u magnitude | 19.20 (0.02) | 19.20 (0.02) | 19.25 (0.03) | ||||||||
g magnitude | 18.87 (0.009) | 18.87 (0.009) | 18.89 (0.02) | ||||||||
r magnitude | 18.85 (0.01) | 18.85 (0.01) | 18.87 (0.02) | ||||||||
i magnitude | 18.94 (0.01) | 18.94 (0.01) | 18.92 (0.02) | ||||||||
z magnitude | 18.99 (0.04) | 18.99 (0.04) | 18.98 (0.04) | ||||||||
G magnitude | 18.80 (0.02) | 18.83 | 18.80 (0.003) | ||||||||
BP magnitude | 18.94 (0.02) | 18.80 | |||||||||
RP magnitude | 18.64 (0.03) | 18.65 | |||||||||
Pan g magnitude | 18.85 (0.01) | ||||||||||
Pan r magnitude | 18.86 (0.005) | ||||||||||
Pan i magnitude | 18.93 (0.007) | ||||||||||
Pan z magnitude | 19.05 (0.04) | ||||||||||
Pan y magnitude | 19.13 (0.05) | ||||||||||
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.