All names: SDSS J074907.27+401347.6, Gaia DR2 920787421430601088, Gaia DR3 920787421430601088, Gaia EDR3 920787421430601088, SDSS J074907.28+401347.6, SDSS J074907.28+401347.64
Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR10 | MWDD H | Gaia DR2 | Stilism | Kepler et al. 2015 | Simbad |
---|---|---|---|---|---|---|---|---|---|
Right ascension | 07 49 07.30 (0.5) | 07 49 07.28 | 07 49 07.30 (0.6) | 07 49 07.28 (0.5) | |||||
Declination | 40 13 47.50 (0.4) | 40 13 47.62 | 40 13 47.51 (0.5) | 40 13 47.62 (0.4) | |||||
Spectral type | DA | DA | DA | ||||||
Effective temperature | [K] | 7680.0 | 7920.0 (117) | ||||||
log(g) | [cgs] | 7.78 | 7.91 (0.2) | ||||||
Mass | [M☉] | 0.469 | 0.547 (0.09) | ||||||
log(Luminosity) | [L☉] | ||||||||
Cooling age | [Gyr] | 0.8864 | |||||||
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] | 2.09 (0.6) | 3.07 (0.9) | 2.09 (0.6) | |||||
Distance | [pc] | 478.43 (135) | 325.61 (97) | 478.42 (135) | |||||
Composition | H | ||||||||
Proper motion (right ascension) | [mas/yr] | 14.60163446 (0.6) | 15.91423548 (1) | 14.602 (0.6) | |||||
Proper motion (declination) | [mas/yr] | -7.344051954 (0.5) | -7.38350591 (0.9) | -7.344 (0.5) | |||||
Variability | |||||||||
Magnetic | |||||||||
Bd | [MG] | ||||||||
Infrared excess (disk) | |||||||||
Binarity | |||||||||
B magnitude | |||||||||
V magnitude | |||||||||
R magnitude | |||||||||
I magnitude | |||||||||
J magnitude | |||||||||
H magnitude | |||||||||
K magnitude | |||||||||
u magnitude | 20.99 (0.08) | 20.98 (0.08) | 20.99 (0.08) | ||||||
g magnitude | 20.51 (0.03) | 20.53 (0.03) | 20.51 (0.03) | ||||||
r magnitude | 20.36 (0.03) | 20.37 (0.03) | 20.36 (0.03) | ||||||
i magnitude | 20.40 (0.04) | 20.43 (0.05) | 20.40 (0.04) | ||||||
z magnitude | 20.42 (0.1) | 20.39 (0.1) | 20.42 (0.1) | ||||||
G magnitude | 20.37 (0.08) | 20.46 | 20.37 (0.008) | ||||||
BP magnitude | 20.59 (0.08) | 20.50 | |||||||
RP magnitude | 19.82 (0.1) | 20.09 | |||||||
Pan g magnitude | 20.47 (0.02) | ||||||||
Pan r magnitude | 20.40 (0.03) | ||||||||
Pan i magnitude | 20.44 (0.01) | ||||||||
Pan z magnitude | 20.43 (0.04) | ||||||||
Pan y magnitude | 19.59 (0.2) | ||||||||
E(B-V) | 0.036 |
* 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.