All names: SDSS J134001.22+222355.0, LAMOST J134001.22+222355.1, Gaia DR2 1443474603368423168, GALEX J134001.2+222355, SDSS J134001.22+222355.1, SDSS J134001.23+222355.1, Gaia DR3 1443474603368423168, Gaia EDR3 1443474603368423168
Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | Gaia DR2 | Stilism | Guo et al. 2015 | Vincent et al. 2024 | Simbad | Kleinman et al. 2013 | Vincent et al. 2023 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Right ascension | 13 40 01.22 (0.1) | 13 40 01.23 | 13 40 01.22 (0.2) | 13 40 01.22 | 13 40 01.23 (0.1) | 13 40 01.23 | ||||||
Declination | 22 23 55.24 (0.1) | 22 23 55.10 | 22 23 55.24 (0.1) | 22 23 55.24 | 22 23 55.11 (0.1) | 22 23 55.15 | ||||||
Spectral type | DA | DA | DA | DA | DA | DA | ||||||
Effective temperature | [K] | 8830.0 | 9166.0 (238) | 9741.0 (72) | ||||||||
log(g) | [cgs] | 7.71 | 7.86 (0.06) | 8.20 (0.09) | ||||||||
Mass | [M☉] | 0.442 | 0.521 (0.05) | 0.716 (0.06) | ||||||||
log(Luminosity) | [L☉] | |||||||||||
Cooling age | [Gyr] | 0.5892 | ||||||||||
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] | 5.27 (0.2) | 5.03 (0.2) | 5.27 | 5.27 (0.2) | |||||||
Distance | [pc] | 189.86 (6) | 198.70 (9) | 189.86 | 189.86 (6) | |||||||
Composition | H | |||||||||||
Proper motion (right ascension) | [mas/yr] | -3.994650255 (0.2) | -4.234087168 (0.4) | -3.995 (0.2) | ||||||||
Proper motion (declination) | [mas/yr] | 8.395889837 (0.1) | 8.181952582 (0.2) | 8.396 (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 | 19.14 (0.02) | 19.14 (0.02) | 19.13 (0.03) | |||||||||
g magnitude | 18.71 (0.008) | 18.71 (0.008) | 18.74 (0.02) | |||||||||
r magnitude | 18.78 (0.01) | 18.78 (0.01) | 18.78 (0.01) | |||||||||
i magnitude | 18.89 (0.01) | 18.89 (0.01) | 18.88 (0.2) | |||||||||
z magnitude | 19.08 (0.04) | 19.08 (0.04) | 19.04 (0.06) | |||||||||
G magnitude | 18.70 (0.02) | 18.73 | 18.70 | 18.70 (0.003) | ||||||||
BP magnitude | 18.79 (0.02) | 18.76 | ||||||||||
RP magnitude | 18.56 (0.02) | 18.54 | ||||||||||
Pan g magnitude | 18.72 (0.007) | |||||||||||
Pan r magnitude | 18.76 (0.006) | |||||||||||
Pan i magnitude | 18.86 (0.007) | |||||||||||
Pan z magnitude | 18.98 (0.02) | |||||||||||
Pan y magnitude | 18.94 (0.03) | |||||||||||
E(B-V) | 0.017 |
* 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.