All names: Gaia DR2 2410908771246898176, WDJ225335.70-143828.19, LHS 3870, WDJ225335.7-143828.18, NLTT 55150, TIC 188585794, J2253-1438, 204911.00-544617.50, LP 821-3, Gaia EDR3 2410908771246898176, 2MASS J22533567-1438279
Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Caron et al. 2023 | O'Brien et al. 2022 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Simbad | Gentile Fusillo et al. 2018 |
---|---|---|---|---|---|---|---|---|---|---|---|
Right ascension | 22 53 36.35 (0.1) | 22 53 36.33 | 22 53 35.70 (0.1) | 22 53 36.33 | |||||||
Declination | -14 38 28.73 (0.09) | -14 38 28.72 | -14 38 28.19 (0.1) | -14 38 28.72 | |||||||
Spectral type | DC: | DA | DC? | ||||||||
Effective temperature | [K] | 4989.0 (19) | 7550.0 (60) | 5349.0 | 5051.0 | ||||||
log(g) | [cgs] | 7.88 (0.01) | 7.91 (0.02) | 8.12 | 7.92 | ||||||
Mass | [M☉] | 0.496 (0.01) | 0.654 | 0.523 | |||||||
log(Luminosity) | [L☉] | ||||||||||
Cooling age | [Gyr] | 4.8600 | 5.1390 | 4.8710 | |||||||
log(H/He) | |||||||||||
log(C/He) | |||||||||||
log(Ca/He) | |||||||||||
log(Ca/H) | |||||||||||
log(N/He) | |||||||||||
log(O/He) | |||||||||||
log(Na/He) | |||||||||||
log(Mg/He) | |||||||||||
log(Al/He) | |||||||||||
log(Si/He) | |||||||||||
log(P/He) | |||||||||||
log(S/He) | |||||||||||
log(Cl/He) | |||||||||||
log(Sc/He) | |||||||||||
log(Ti/He) | |||||||||||
log(V/He) | |||||||||||
log(Cr/He) | |||||||||||
log(Mn/He) | |||||||||||
log(Fe/He) | |||||||||||
log(Co/He) | |||||||||||
log(Ni/He) | |||||||||||
log(Cu/He) | |||||||||||
log(Zn/He) | |||||||||||
log(Ga/He) | |||||||||||
log(Ge/He) | |||||||||||
log(Sr/He) | |||||||||||
Parallax | [mas] | 27.35 (0.1) | 27.35 (0.1) | 25.48 (0.04) | 27.35 (0.1) | 27.35 (0.1) | 27.35 (0.1) | ||||
Distance | [pc] | 36.56 (0.2) | 36.56 (0.2) | 39.25 (0.06) | 36.57 (0.2) | 36.57 (0.2) | 36.57 (0.2) | ||||
Composition | He | ||||||||||
Proper motion (right ascension) | [mas/yr] | 583.9015564 (0.1) | 583.5856541 (0.3) | 583.586 (0.3) | 583.5856541 | ||||||
Proper motion (declination) | [mas/yr] | -34.15737342 (0.1) | -34.05396809 (0.2) | -34.054 (0.2) | -34.05396809 | ||||||
Variability | |||||||||||
Magnetic | |||||||||||
Bd | [MG] | ||||||||||
Infrared excess (disk) | |||||||||||
Binarity | |||||||||||
B magnitude | 17.60 | ||||||||||
V magnitude | |||||||||||
R magnitude | |||||||||||
I magnitude | |||||||||||
J magnitude | 16.33 (0.02) | 16.63 (0.1) | |||||||||
H magnitude | 16.33 (0.2) | 16.33 (0.2) | |||||||||
K magnitude | 16.05 (0.05) | ||||||||||
u magnitude | |||||||||||
g magnitude | |||||||||||
r magnitude | |||||||||||
i magnitude | |||||||||||
z magnitude | |||||||||||
G magnitude | 17.51 (0.02) | 17.53 | 17.53 (0.002) | 17.53 | |||||||
BP magnitude | 17.90 (0.02) | 17.93 | 17.93 | ||||||||
RP magnitude | 16.93 (0.01) | 16.95 | 16.95 | ||||||||
Pan g magnitude | 17.99 (0.004) | 17.99 (0.004) | |||||||||
Pan r magnitude | 17.48 (0.007) | 17.48 (0.007) | |||||||||
Pan i magnitude | 17.29 (0.004) | 17.29 (0.004) | |||||||||
Pan z magnitude | 17.21 (0.009) | 17.21 (0.009) | |||||||||
Pan y magnitude | 17.22 (0.01) | 17.22 (0.01) | |||||||||
E(B-V) | 0.001 |
* 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.