All names: Gaia DR2 887534135357644416, J0654+2834, Gaia EDR3 887534135357644416, WDJ065448.44+283439.12, Gaia DR3 887534135357644416, SDSS J065448.45+283438.3, SDSS J065448.46+283438.4, SDSS J065448.46+283438.3
Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Kilic et al. 2025 | Caron et al. 2023 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Simbad | Gentile Fusillo et al. 2018 | Kleinman et al. 2013 | Vincent et al. 2023 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Right ascension | 06 54 48.48 (0.3) | 06 54 48.46 | 06 54 48.48 (0.3) | 06 54 48.44 (0.3) | 06 54 48.48 | 06 54 48.46 | ||||||||
Declination | 28 34 37.33 (0.3) | 28 34 38.35 | 28 34 37.38 (0.3) | 28 34 39.12 (0.3) | 28 34 37.38 | 28 34 38.37 | ||||||||
Spectral type | DC | DC | DC | DC | DC | DC | DC: | |||||||
Effective temperature | [K] | 4995.0 (50) | 5006.0 (49) | 5002.0 | 4684.0 | 6301.0 (5) | ||||||||
log(g) | [cgs] | 7.91 (0.04) | 7.84 (0.05) | 7.84 | 7.61 | 9.99 (0.01) | ||||||||
Mass | [M☉] | 0.527 (0.04) | 0.487 (0.04) | 0.485 | 0.359 | |||||||||
log(Luminosity) | [L☉] | |||||||||||||
Cooling age | [Gyr] | 3.8000 | 3.8050 | 3.1200 | ||||||||||
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] | 11.36 (0.4) | 10.82 (0.4) | 10.82 (0.4) | 11.36 (0.4) | 10.82 (0.4) | ||||||||
Distance | [pc] | 88.04 (3) | 92.42 (4) | 92.38 (4) | 88.04 (3) | 92.38 (4) | ||||||||
Composition | H | H | ||||||||||||
Proper motion (right ascension) | [mas/yr] | 32.57269357 (0.4) | 31.63305476 (0.7) | 32.573 (0.4) | 31.63305476 | |||||||||
Proper motion (declination) | [mas/yr] | -111.7777375 (0.3) | -111.8325275 (0.6) | -111.778 (0.3) | -111.8325275 | |||||||||
Variability | ||||||||||||||
Magnetic | ||||||||||||||
Bd | [MG] | |||||||||||||
Infrared excess (disk) | ||||||||||||||
Binarity | ||||||||||||||
B magnitude | ||||||||||||||
V magnitude | ||||||||||||||
R magnitude | ||||||||||||||
I magnitude | ||||||||||||||
J magnitude | 18.21 (0.05) | |||||||||||||
H magnitude | ||||||||||||||
K magnitude | ||||||||||||||
u magnitude | 21.74 (0.1) | 21.74 (0.1) | 21.74 (0.1) | 21.74 (0.1) | 21.73 (0.1) | |||||||||
g magnitude | 20.13 (0.02) | 20.13 (0.02) | 20.13 (0.02) | 20.14 (0.02) | ||||||||||
r magnitude | 19.43 (0.01) | 19.43 (0.01) | 19.43 (0.01) | 19.44 (0.02) | ||||||||||
i magnitude | 19.15 (0.02) | 19.15 (0.02) | 19.15 (0.02) | 19.16 (0.02) | ||||||||||
z magnitude | 19.09 (0.05) | 19.09 (0.05) | 19.09 (0.05) | 19.10 (0.05) | ||||||||||
G magnitude | 19.48 (0.08) | 19.51 | 19.48 (0.005) | 19.51 | ||||||||||
BP magnitude | 19.93 (0.08) | 19.92 | 19.92 | |||||||||||
RP magnitude | 18.80 (0.05) | 18.87 | 18.87 | |||||||||||
Pan g magnitude | 20.05 (0.02) | 20.05 (0.02) | ||||||||||||
Pan r magnitude | 19.45 (0.009) | 19.45 (0.008) | ||||||||||||
Pan i magnitude | 19.18 (0.008) | 19.18 (0.008) | ||||||||||||
Pan z magnitude | 19.12 (0.02) | 19.12 (0.02) | ||||||||||||
Pan y magnitude | 19.03 (0.03) | 19.03 (0.03) | ||||||||||||
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.