All names: Gaia DR3 610015201483494272, GALEX J084618.5+154420, SDSS J084618.45+154419.9, Gaia EDR3 610015201483494272, Gaia DR2 610015201483494272, SDSS J084618.45+154419.93
Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR10 | Bedard et al. 2020 | MWDD H | Gaia DR2 | Stilism | Kepler et al. 2015 | Vincent et al. 2024 | Simbad | Vincent et al. 2023 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Right ascension | 08 46 18.46 (0.1) | 08 46 18.45 | 08 46 18.46 (0.1) | 08 46 18.46 | 08 46 18.45 (0.1) | |||||||
Declination | 15 44 19.86 (0.06) | 15 44 19.98 | 15 44 19.87 (0.08) | 15 44 19.86 | 15 44 20.02 (0.06) | |||||||
Spectral type | DA | DA | DA | DA | DA | DA | ||||||
Effective temperature | [K] | 38915.0 (383) | 27454.0 | 42181.0 (311) | 44913.0 (7720) | |||||||
log(g) | [cgs] | 7.89 (0.05) | 7.55 | 8.09 (0.03) | 8.06 (0.1) | |||||||
Mass | [M☉] | 0.61 (0.02) | 0.436 | 0.708 (0.01) | 0.71 (0.09) | |||||||
log(Luminosity) | [L☉] | -0.35 (0.04) | ||||||||||
Cooling age | [Gyr] | 0.0040 (0.0001) | 0.0125 | |||||||||
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] | 2.00 (0.1) | 1.95 (0.2) | 2.00 | 2.00 (0.1) | |||||||
Distance | [pc] | 500.07 (33) | 511.89 (48) | 500.07 | 500.08 (33) | |||||||
Composition | H | H | ||||||||||
Proper motion (right ascension) | [mas/yr] | 1.805163782 (0.1) | 1.626491528 (0.3) | 1.805 (0.1) | ||||||||
Proper motion (declination) | [mas/yr] | -9.982674012 (0.1) | -9.882465149 (0.2) | -9.983 (0.1) | ||||||||
Variability | ||||||||||||
Magnetic | ||||||||||||
Bd | [MG] | |||||||||||
Infrared excess (disk) | ||||||||||||
Binarity | ||||||||||||
B magnitude | ||||||||||||
V magnitude | ||||||||||||
R magnitude | ||||||||||||
I magnitude | ||||||||||||
J magnitude | ||||||||||||
H magnitude | ||||||||||||
K magnitude | ||||||||||||
u magnitude | 17.33 (0.01) | 17.33 (0.02) | 17.33 (0.01) | |||||||||
g magnitude | 17.71 (0.005) | 17.73 (0.02) | 17.71 (0.005) | |||||||||
r magnitude | 18.22 (0.007) | 18.23 (0.02) | 18.23 (0.007) | |||||||||
i magnitude | 18.56 (0.01) | 18.58 (0.02) | 18.56 (0.01) | |||||||||
z magnitude | 18.95 (0.04) | 18.96 (0.04) | 18.95 (0.04) | |||||||||
G magnitude | 17.97 (0.01) | 18.00 | 17.97 | 17.97 (0.003) | ||||||||
BP magnitude | 17.83 (0.01) | 17.77 | ||||||||||
RP magnitude | 18.27 (0.02) | 18.24 | ||||||||||
Pan g magnitude | 17.81 (0.009) | |||||||||||
Pan r magnitude | 18.23 (0.006) | |||||||||||
Pan i magnitude | 18.59 (0.01) | |||||||||||
Pan z magnitude | 18.86 (0.009) | |||||||||||
Pan y magnitude | 19.09 (0.04) | |||||||||||
E(B-V) | 0.028 |
* 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.