All names: WD 0905+472, Gaia DR2 1011466005095102464, Gaia EDR3 1011466005095102464, WDJ090914.58+470017.86, LSPM J0909+4700, NLTT 21040, LP 165-27, SDSS J090914.55+470017.5, J0909+4700, SDSS J090914.56+470017.5, Gaia DR3 1011466005095102464, USNO-B1.0 1370-00230214
Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | Caron et al. 2023 | Bergeron et al. 2022 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Right ascension | 09 09 14.40 (0.2) | 09 09 14.40 (0.2) | 09 09 14.40 | 09 09 14.58 (0.2) | 09 09 14.40 | 09 09 13.90 | ||||||||
Declination | 47 00 14.93 (0.1) | 47 00 15.02 (0.2) | 47 00 14.93 | 47 00 17.85 (0.1) | 47 00 15.02 | 47 00 12.60 | ||||||||
Spectral type | DC-IRfaint | DC | DC | DC | DC | DA | DC | DC11.2 | ||||||
Effective temperature | [K] | 4649.0 (37) | 4650.0 (39) | 4649.0 (37) | 5294.0 | 4998.0 | 5340.0 (64) | |||||||
log(g) | [cgs] | 7.86 (0.02) | 7.87 (0.03) | 8.14 | 7.95 | 8.15 (0.03) | ||||||||
Mass | [M☉] | 0.488 (0.01) | 0.49 (0.02) | 0.488 (0.01) | 0.67 | 0.538 | 0.675 (0.03) | |||||||
log(Luminosity) | [L☉] | |||||||||||||
Cooling age | [Gyr] | 5.5400 | 5.2280 | 5.7260 | 5.2410 | |||||||||
log(H/He) | -1.88 | -1.88 | -1.88 | |||||||||||
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] | 16.09 (0.2) | 16.11 (0.3) | 16.11 (0.3) | 16.09 | 16.09 (0.2) | 16.11 (0.3) | |||||||
Distance | [pc] | 62.17 (0.8) | 62.07 (1) | 62.07 (1) | 62.17 | 62.17 (0.8) | 62.07 (1) | |||||||
Composition | He | |||||||||||||
Proper motion (right ascension) | [mas/yr] | -118.8797461 (0.2) | -118.8301444 (0.4) | -118.88 (0.2) | -118.8301444 | |||||||||
Proper motion (declination) | [mas/yr] | -182.5046637 (0.1) | -182.8187625 (0.4) | -182.505 (0.1) | -182.8187625 | |||||||||
Variability | ||||||||||||||
Magnetic | ||||||||||||||
Bd | [MG] | |||||||||||||
Infrared excess (disk) | ||||||||||||||
Binarity | ||||||||||||||
B magnitude | 20.10 | |||||||||||||
V magnitude | ||||||||||||||
R magnitude | 18.40 | |||||||||||||
I magnitude | ||||||||||||||
J magnitude | 18.11 (0.04) | 18.11 (0.04) | ||||||||||||
H magnitude | 18.62 (0.07) | 18.62 (0.07) | ||||||||||||
K magnitude | 19.10 (0.1) | 19.10 (0.1) | ||||||||||||
u magnitude | 20.68 (0.08) | 20.68 (0.08) | 20.47 (0.06) | 20.64 | ||||||||||
g magnitude | 19.28 (0.01) | 19.33 (0.01) | 19.29 | |||||||||||
r magnitude | 18.73 (0.01) | 18.69 (0.01) | 18.74 | |||||||||||
i magnitude | 18.48 (0.01) | 18.47 (0.01) | 18.50 | |||||||||||
z magnitude | 18.40 (0.03) | 18.51 (0.04) | 18.42 | |||||||||||
G magnitude | 18.73 (0.02) | 18.76 | 18.73 | 18.73 (0.003) | 18.76 | |||||||||
BP magnitude | 19.16 (0.02) | 19.13 | 19.13 | |||||||||||
RP magnitude | 18.14 (0.02) | 18.14 | 18.14 | |||||||||||
Pan g magnitude | 19.25 (0.007) | 19.25 (0.008) | ||||||||||||
Pan r magnitude | 18.69 (0.005) | 18.69 (0.006) | ||||||||||||
Pan i magnitude | 18.47 (0.006) | 18.47 (0.007) | ||||||||||||
Pan z magnitude | 18.43 (0.005) | 18.43 (0.005) | ||||||||||||
Pan y magnitude | 18.47 (0.01) | 18.47 (0.01) | ||||||||||||
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.