All names: Gaia DR3 1109099132950635776, LAMOST J070553.71+684905.1, GALEX J070553.6+684904, TIC 99545080, 2MASS J07055372+6849049, Gaia DR2 1109099132950635776, WDJ070553.65+684904.40, USNO-A2.0 1575-02665663, Gaia EDR3 1109099132950635776, WD 0700+688
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2026a | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 07 05 53.73 (0.02) | 07 05 53.72 (0.03) | 07 05 53.73 | 07 05 53.65 (0.02) | 07 05 53.72 | 07 05 19.97 | ||||
| Declination | 68 49 05.23 (0.03) | 68 49 05.21 (0.04) | 68 49 05.23 | 68 49 04.40 (0.03) | 68 49 05.21 | 68 48 29.52 | ||||
| Spectral type | DBA | DB | DB | DB | ||||||
| Effective temperature | [K] | 12437.0 (100) | 12957.0 (104) | |||||||
| log(g) | [cgs] | 8.03 (0.009) | 8.09 (0.01) | |||||||
| Mass | [M☉] | 0.603 (0.008) | 0.641 (0.008) | |||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | |||||||||
| log(H/He) | -5.5 | |||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| log(Li/He) | ||||||||||
| log(Be/He) | ||||||||||
| log(B/He) | ||||||||||
| 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(K/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] | 12.58 (0.04) | 12.52 (0.06) | 12.58 | 12.58 (0.04) | 12.52 (0.06) | ||||
| Distance | [pc] | 79.48 (0.2) | 79.90 (0.4) | 79.48 | 79.48 (0.3) | 79.90 (0.4) | ||||
| Composition | He | |||||||||
| Proper motion (right ascension) | [mas/yr] | 25.52741788 (0.03) | 25.44030091 (0.07) | 25.527 (0.03) | 25.44030091 | |||||
| Proper motion (declination) | [mas/yr] | 52.41955785 (0.04) | 52.36575655 (0.08) | 52.42 (0.04) | 52.36575655 | |||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | ||||||||||
| B magnitude | 15.90 (0.3) | |||||||||
| V magnitude | ||||||||||
| R magnitude | 16.40 (0.3) | |||||||||
| I magnitude | ||||||||||
| J magnitude | 16.48 (0.1) | |||||||||
| H magnitude | 16.46 (0.3) | |||||||||
| K magnitude | ||||||||||
| u magnitude | ||||||||||
| g magnitude | ||||||||||
| r magnitude | ||||||||||
| i magnitude | ||||||||||
| z magnitude | ||||||||||
| G magnitude | 16.24 (0.003) | 16.27 | 16.24 | 16.24 (0.003) | 16.27 | |||||
| BP magnitude | 16.22 (0.003) | 16.19 | 16.19 | |||||||
| RP magnitude | 16.28 (0.004) | 16.28 | 16.28 | |||||||
| Pan g magnitude | 16.20 (0.003) | |||||||||
| Pan r magnitude | 16.40 (0.003) | |||||||||
| Pan i magnitude | 16.60 (0.003) | |||||||||
| Pan z magnitude | 16.80 (0.005) | |||||||||
| Pan y magnitude | 16.93 (0.007) | |||||||||
| E(B-V) | 0.003 | |||||||||
* 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.