All names: WDJ074725.88+440848.32, EGGR 343, FBS 0743+442, GEN# +6.10060089, WD 0743+44, SDSS J074725.84+440847.6, Gaia DR2 926002203218885504, TIC 241182175, Gaia EDR3 926002203218885504, FBS B 246, PM J07474+4408W, USNO-B1.0 1341-00191780, GD 89, J0747+4408, 2MASS J07472588+4408485, LSPM J0747+4408, WD 0743+442, SDSS J074725.87+440848.2, Gaia DR3 926002203218885504, 07474+4408W
Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | O'Brien et al. 2024 | Kilic et al. 2020 | McCleery et al. 2020 | MWDD H | Gaia DR2 | Stilism | Limoges et al. 2015 | Gianninas et al. 2011 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Right ascension | 07 47 25.74 (0.03) | 07 47 25.75 (0.05) | 07 47 25.75 (0.05) | 07 47 25.74 | 07 47 25.88 (0.03) | 07 47 25.75 | 07 47 25.94 | |||||||||
Declination | 44 08 45.68 (0.02) | 44 08 45.76 (0.03) | 44 08 45.76 (0.03) | 44 08 45.68 | 44 08 48.32 (0.02) | 44 08 45.76 | 44 08 52.08 | |||||||||
Spectral type | DA | DA | DA | DA | DA | DA | DA | DA | DA3.3 | DA5 | ||||||
Effective temperature | [K] | 14704.0 (122) | 15198.0 (258) | 14704.0 (122) | 15015.7 (152) | 14850.0 | 15120.0 (336) | 15220.0 (345) | 15810.0 (158) | |||||||
log(g) | [cgs] | 8.42 (0.006) | 8.44 (0.02) | 8.42 (0.006) | 8.44 (0.01) | 8.43 | 8.47 (0.05) | 8.47 (0.05) | 8.48 (0.008) | |||||||
Mass | [M☉] | 0.875 (0.005) | 0.89 (0.01) | 0.874 (0.005) | 0.88 | 0.91 (0.03) | 0.91 (0.03) | 0.917 (0.006) | ||||||||
log(Luminosity) | [L☉] | -2.40 | ||||||||||||||
Cooling age | [Gyr] | 0.4043 | ||||||||||||||
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] | 26.09 (0.03) | 26.09 (0.03) | 26.08 (0.06) | 26.08 (0.06) | 26.09 | 26.09 (0.03) | 26.08 (0.06) | ||||||||
Distance | [pc] | 38.33 (0.05) | 38.33 (0.04) | 38.34 (0.08) | 38.34 (0.08) | 37.50 (1) | 39.00 | 38.33 | 38.33 (0.05) | 38.34 (0.08) | ||||||
Composition | H | H | H | H | H | |||||||||||
Proper motion (right ascension) | [mas/yr] | -87.64381721 (0.03) | -87.81463782 (0.1) | -87.644 (0.03) | -87.81463782 | |||||||||||
Proper motion (declination) | [mas/yr] | -165.0920205 (0.02) | -165.0544718 (0.06) | -165.092 (0.02) | -165.0544718 | |||||||||||
Variability | NOV | |||||||||||||||
Magnetic | ||||||||||||||||
Bd | [MG] | |||||||||||||||
Infrared excess (disk) | ||||||||||||||||
Binarity | ||||||||||||||||
B magnitude | 14.95 | |||||||||||||||
V magnitude | ||||||||||||||||
R magnitude | 15.00 | |||||||||||||||
I magnitude | ||||||||||||||||
J magnitude | 15.23 (0.04) | |||||||||||||||
H magnitude | 15.40 (0.1) | |||||||||||||||
K magnitude | 15.18 (0.1) | |||||||||||||||
u magnitude | 15.04 (0.004) | 15.00 (0.004) | ||||||||||||||
g magnitude | 14.79 (0.003) | 14.76 (0.003) | ||||||||||||||
r magnitude | 15.06 (0.004) | 15.04 (0.003) | ||||||||||||||
i magnitude | 15.30 (0.004) | 15.29 (0.003) | ||||||||||||||
z magnitude | 15.56 (0.006) | 15.55 (0.006) | ||||||||||||||
G magnitude | 14.91 (0.002) | 14.93 | 14.93 | 14.91 | 14.91 (0.003) | 14.93 | ||||||||||
BP magnitude | 14.87 (0.002) | 14.86 | 14.86 | |||||||||||||
RP magnitude | 15.01 (0.003) | 15.01 | 15.01 | |||||||||||||
Pan g magnitude | 14.81 (0.003) | |||||||||||||||
Pan r magnitude | 15.05 (0.003) | |||||||||||||||
Pan i magnitude | 15.32 (0.002) | |||||||||||||||
Pan z magnitude | 15.56 (0.002) | |||||||||||||||
Pan y magnitude | 15.72 (0.004) | |||||||||||||||
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.