All names: BPS CS 22965-0020, GALEX J215441.2-041818, Gaia EDR3 2670147461020069632, TIC 241104752, WD 2152-045, Gaia DR2 2670147461020069632, Gaia DR3 2670147461020069632, USNO-B1.0 0856-00575389, BPS CS 22965-20, 2MASS J21544123-0418180
Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | MWDD H | Gaia DR2 | Stilism | Gianninas et al. 2011 | Koester et al. 2009 | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
---|---|---|---|---|---|---|---|---|---|---|---|
Right ascension | 21 54 41.27 (0.04) | 21 54 41.27 (0.08) | 21 54 41.27 | 21 54 41.23 (0.04) | 21 54 40.49 | ||||||
Declination | -04 18 18.36 (0.03) | -04 18 18.35 (0.06) | -04 18 18.36 | -04 18 18.05 (0.03) | -04 18 16.92 | ||||||
Spectral type | DA | DA | DA | DA2.4 | DA | ||||||
Effective temperature | [K] | 16658.0 | 20630.0 (334) | 19837.0 (36) | 18994.0 (294) | ||||||
log(g) | [cgs] | 7.26 | 7.55 (0.05) | 7.38 (0.006) | 7.46 (0.01) | ||||||
Mass | [M☉] | 0.307 | 0.43 (0.02) | 0.377 (0.007) | |||||||
log(Luminosity) | [L☉] | ||||||||||
Cooling age | [Gyr] | 0.0651 | |||||||||
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] | 7.74 (0.05) | 7.45 (0.09) | 7.74 | 7.74 (0.05) | ||||||
Distance | [pc] | 129.15 (0.8) | 134.16 (2) | 100.00 | 129.15 | 129.15 (0.8) | |||||
Composition | H | H | |||||||||
Proper motion (right ascension) | [mas/yr] | 42.91114504 (0.05) | 43.20593963 (0.1) | 42.911 (0.05) | |||||||
Proper motion (declination) | [mas/yr] | -19.3873913 (0.04) | -19.00237756 (0.1) | -19.387 (0.04) | |||||||
Variability | |||||||||||
Magnetic | |||||||||||
Bd | [MG] | ||||||||||
Infrared excess (disk) | |||||||||||
Binarity | |||||||||||
B magnitude | 15.00 | 15.50 | |||||||||
V magnitude | 15.50 | ||||||||||
R magnitude | 15.90 | ||||||||||
I magnitude | |||||||||||
J magnitude | 16.06 (0.08) | ||||||||||
H magnitude | 16.08 (0.2) | ||||||||||
K magnitude | |||||||||||
u magnitude | |||||||||||
g magnitude | |||||||||||
r magnitude | |||||||||||
i magnitude | |||||||||||
z magnitude | |||||||||||
G magnitude | 15.65 (0.002) | 15.67 | 15.65 | 15.65 (0.003) | |||||||
BP magnitude | 15.57 (0.002) | 15.54 | |||||||||
RP magnitude | 15.81 (0.003) | 15.82 | |||||||||
Pan g magnitude | 15.51 (0.004) | ||||||||||
Pan r magnitude | 15.83 (0.005) | ||||||||||
Pan i magnitude | 16.13 (0.002) | ||||||||||
Pan z magnitude | 16.37 (0.003) | ||||||||||
Pan y magnitude | 16.54 (0.009) | ||||||||||
E(B-V) | 0.012 |
* 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.