All names: WD 1547+057, TIC 272675206, 2MASS J15493479+0535169, Gaia DR3 4426435871273922560, J1549+0535, GALEX J154934.7+053518, SDSS J154934.77+053517.1, USNO-B1.0 0955-00254275, Gaia DR2 4426435871273922560, SDSS J154934.78+053517.1, WDJ154934.79+053517.10, PG 1547+057, SDSS J154934.75+053517.1, Gaia EDR3 4426435871273922560
Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Kilic et al. 2025 | Kilic et al. 2020 | MWDD H | Gaia DR2 | Stilism | Koester et al. 2014 | Gianninas et al. 2011 | Koester et al. 2009 | Liebert et al. 2005 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Right ascension | 15 49 34.74 (0.04) | 15 49 34.78 | 15 49 34.74 (0.06) | 15 49 34.74 | 15 49 34.79 (0.04) | 15 49 34.74 | 15 49 34.22 | 15 49 34.78 | |||||||||||
Declination | 05 35 17.09 (0.04) | 05 35 17.12 | 05 35 17.09 (0.05) | 05 35 17.09 | 05 35 17.10 (0.04) | 05 35 17.09 | 05 35 13.56 | 05 35 17.13 | |||||||||||
Spectral type | DA | DA | DA | DA | DA | DA1.9 | DA | DA3 | DA | DA | |||||||||
Effective temperature | [K] | 23225.0 (358) | 23228.0 (356) | 22085.0 | 24566.0 (334) | 25860.0 (387) | 24355.0 (58) | 24850.0 (373) | 23188.0 (406) | 25610.0 (143) | |||||||||
log(g) | [cgs] | 8.42 (0.01) | 8.41 (0.01) | 8.36 | 8.41 (0.09) | 8.45 (0.05) | 8.36 (0.007) | 8.41 (0.05) | 8.42 (0.01) | 8.45 (0.02) | |||||||||
Mass | [M☉] | 0.886 (0.01) | 0.882 (0.01) | 0.849 | 0.876 (0.06) | 0.91 (0.03) | 0.88 (0.03) | 0.884 (0.01) | 0.891 (0.01) | ||||||||||
log(Luminosity) | [L☉] | -1.49 | |||||||||||||||||
Cooling age | [Gyr] | 0.1102 | 0.0933 | ||||||||||||||||
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) | <-8.20 | ||||||||||||||||||
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] | 11.31 (0.06) | 11.26 (0.08) | 11.31 | 11.31 (0.06) | 11.26 (0.08) | |||||||||||||
Distance | [pc] | 88.38 (0.5) | 88.80 (0.6) | 96.00 | 97.00 | 88.38 | 88.38 (0.5) | 88.80 (0.6) | |||||||||||
Composition | H | H | H | ||||||||||||||||
Proper motion (right ascension) | [mas/yr] | -50.51619726 (0.05) | -50.81226385 (0.1) | -50.516 (0.05) | -50.812 | ||||||||||||||
Proper motion (declination) | [mas/yr] | -1.115221613 (0.05) | -0.917472234 (0.1) | -1.115 (0.05) | -0.917 | ||||||||||||||
Variability | |||||||||||||||||||
Magnetic | |||||||||||||||||||
Bd | [MG] | ||||||||||||||||||
Infrared excess (disk) | |||||||||||||||||||
Binarity | |||||||||||||||||||
B magnitude | 15.57 | ||||||||||||||||||
V magnitude | 15.94 (0.05) | 15.92 | 15.92 | ||||||||||||||||
R magnitude | 16.00 | ||||||||||||||||||
I magnitude | |||||||||||||||||||
J magnitude | 16.48 (0.01) | ||||||||||||||||||
H magnitude | 16.60 (0.03) | ||||||||||||||||||
K magnitude | 16.61 (0.04) | ||||||||||||||||||
u magnitude | 15.59 (0.005) | 15.59 (0.005) | 15.59 (0.005) | 15.62 (0.02) | |||||||||||||||
g magnitude | 15.70 (0.004) | 15.70 (0.004) | 15.70 (0.004) | 15.74 (0.01) | |||||||||||||||
r magnitude | 16.11 (0.004) | 16.11 (0.004) | 16.11 (0.004) | 16.12 (0.01) | |||||||||||||||
i magnitude | 16.44 (0.005) | 16.44 (0.005) | 16.44 (0.005) | 16.43 (0.02) | |||||||||||||||
z magnitude | 16.75 (0.009) | 16.75 (0.009) | 16.75 (0.009) | 16.75 (0.02) | |||||||||||||||
G magnitude | 15.92 (0.002) | 15.94 | 15.92 | 15.92 (0.003) | 15.94 | ||||||||||||||
BP magnitude | 15.82 (0.002) | 15.77 | 15.77 | ||||||||||||||||
RP magnitude | 16.13 (0.004) | 16.13 | 16.13 | ||||||||||||||||
Pan g magnitude | 15.76 (0.003) | ||||||||||||||||||
Pan r magnitude | 16.12 (0.0004) | ||||||||||||||||||
Pan i magnitude | 16.46 (0.005) | ||||||||||||||||||
Pan z magnitude | 16.72 (0.006) | ||||||||||||||||||
Pan y magnitude | 16.91 (0.007) | ||||||||||||||||||
E(B-V) | 0.007 |
* 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.