All names: SDSS J123829.39+010219.2, 2QZ J123829.4+010218, FOCAP QNY3:41, PSO J123829.388+010219.169, Gaia DR2 3697071117836866688, SDSS J123829.39+010219.25
Parameter | Unit | MWDD H | Pan-STARRS DR1 | Gaia DR2 | Kepler et al. 2015 | SDSS DR10 | Simbad |
---|---|---|---|---|---|---|---|
Right ascension | 12 38 29.38 (0.5) | 12 38 29.39 | 12 38 29.39 | ||||
Declination | 01 02 19.09 (0.4) | 01 02 19.24 | 01 02 19.21 | ||||
Spectral type | DA | DA | DA | ||||
Effective temperature | [K] | 7934.0 | 8543.0 (102) | ||||
log(g) | [cgs] | 7.67 | 7.89 (0.1) | ||||
Mass | [M☉] | 0.419 | 0.5379999999999999 (0.07) | ||||
log(Luminosity) | [L☉] | ||||||
Cooling age | [Gyr] | 0.7376 | |||||
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] | 2.97 (0.7) | |||||
Distance | [pc] | 337.02 (78) | |||||
Composition | H | ||||||
Proper motion (right ascension) | [mas/yr] | -14.2894028059 (2) | 1.0 | ||||
Proper motion (declination) | [mas/yr] | -13.4880120235 (1) | -7.0 | ||||
Variability | |||||||
Magnetic | |||||||
Bd | [MG] | ||||||
Infrared excess (disk) | |||||||
Binarity | |||||||
B magnitude | |||||||
V magnitude | |||||||
R magnitude | |||||||
I magnitude | |||||||
J magnitude | |||||||
H magnitude | |||||||
K magnitude | |||||||
u magnitude | 20.63 (0.06) | 20.66 (0.06) | 20.68 | ||||
g magnitude | 20.25 (0.03) | 20.26 (0.02) | 20.28 | ||||
r magnitude | 20.25 (0.04) | 20.25 (0.03) | 20.26 | ||||
i magnitude | 20.32 (0.04) | 20.31 (0.04) | 20.29 | ||||
z magnitude | 20.40 (0.2) | 20.34 (0.2) | 20.34 | ||||
G magnitude | 20.27 | ||||||
BP magnitude | 20.27 | ||||||
RP magnitude | 19.92 | ||||||
Pan g magnitude | 20.25 (0.02) | ||||||
Pan r magnitude | 20.27 (0.03) | ||||||
Pan i magnitude | 20.26 (0.02) | ||||||
Pan z magnitude | 20.33 (0.04) | ||||||
Pan y magnitude | 20.19 (0.06) |
* Constant surface field
Spectra without link are available upon request
The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour at Université de Montréal. Please send database updates, corrections, suggestions or bug reports to dufourpa@astro.umontreal.ca.