All names: Gaia DR2 277090540953615616, J0433+5527, TIC 445709423, Gaia DR3 277090540953615616, SDSS J043317.53+552714.4, HD 28579B, WDJ043317.53+552714.89, SDSS J043317.52+552714.4, Gaia EDR3 277090540953615616
Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | Caron et al. 2023 | Kilic et al. 2020 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Right ascension | 04 33 17.52 (0.05) | 04 33 17.52 | 04 33 17.52 | 04 33 17.53 (0.05) | 04 33 17.52 | ||||||||
Declination | 55 27 13.24 (0.04) | 55 27 13.29 | 55 27 13.24 | 55 27 14.89 (0.04) | 55 27 13.29 | ||||||||
Spectral type | DA | DA | DA | DA | DA | ||||||||
Effective temperature | [K] | 8686.0 (134) | 9265.0 (71) | 8686.0 (133) | 8683.0 | 8532.0 | 8865.0 (91) | ||||||
log(g) | [cgs] | 7.92 (0.03) | 8.05 (0.01) | 7.92 (0.03) | 7.92 | 7.84 | 7.98 (0.02) | ||||||
Mass | [M☉] | 0.549 (0.02) | 0.631 (0.01) | 0.548 (0.02) | 0.549 | 0.489 | 0.584 (0.01) | ||||||
log(Luminosity) | [L☉] | ||||||||||||
Cooling age | [Gyr] | 0.8300 | 0.7770 | 0.7712 | |||||||||
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] | 13.46 (0.07) | 13.45 (0.08) | 13.45 (0.08) | 13.46 | 13.46 (0.07) | 13.45 (0.08) | ||||||
Distance | [pc] | 74.29 (0.4) | 74.35 (0.4) | 74.32 (0.5) | 74.29 | 74.29 (0.4) | 74.32 (0.5) | ||||||
Composition | H | H | |||||||||||
Proper motion (right ascension) | [mas/yr] | -0.449486897 (0.07) | -0.463597279 (0.1) | -0.449 (0.07) | -0.463597279 | ||||||||
Proper motion (declination) | [mas/yr] | -103.1182582 (0.06) | -103.1029319 (0.1) | -103.118 (0.06) | -103.1029319 | ||||||||
Variability | |||||||||||||
Magnetic | |||||||||||||
Bd | [MG] | ||||||||||||
Infrared excess (disk) | |||||||||||||
Binarity | |||||||||||||
B magnitude | |||||||||||||
V magnitude | |||||||||||||
R magnitude | |||||||||||||
I magnitude | |||||||||||||
J magnitude | 16.67 (0.01) | ||||||||||||
H magnitude | 16.56 (0.02) | ||||||||||||
K magnitude | 16.73 (0.05) | ||||||||||||
u magnitude | 17.25 (0.009) | 17.33 (0.009) | 17.33 (0.009) | ||||||||||
g magnitude | 17.12 (0.004) | 17.12 (0.004) | |||||||||||
r magnitude | 17.05 (0.005) | 17.05 (0.005) | |||||||||||
i magnitude | 16.99 (0.005) | 16.99 (0.005) | |||||||||||
z magnitude | 17.29 (0.01) | 17.29 (0.01) | |||||||||||
G magnitude | 16.91 (0.01) | 16.94 | 16.91 | 16.91 (0.003) | 16.94 | ||||||||
BP magnitude | 17.01 (0.01) | 17.00 | 17.00 | ||||||||||
RP magnitude | 16.74 (0.007) | 16.74 | 16.74 | ||||||||||
Pan g magnitude | 16.96 (0.01) | 16.96 (0.01) | |||||||||||
Pan r magnitude | 16.95 (0.0009) | 16.95 (0.0009) | |||||||||||
Pan i magnitude | 17.05 (0.02) | 17.05 (0.02) | |||||||||||
Pan z magnitude | 17.15 (0.01) | 17.15 (0.01) | |||||||||||
Pan y magnitude | 17.18 (0.04) | 17.18 (0.05) | |||||||||||
E(B-V) | 0.002 |
* 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.