All names: Gaia DR3 235842052999634944, Gaia EDR3 235842052999634944, NLTT 10398, GD 44, LSPM J0316+3932, TIC 177996792, Gaia DR2 235842052999634944, WDJ031642.12+393222.85, WD 0313+393, 2MASS J03164211+3932229, J0316+3932, USNO-B1.0 1295-00065068
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | O'Brien et al. 2024 | Caron et al. 2023 | McCleery et al. 2020 | Gaia DR2 | Stilism | Kawka et Vennes 2006 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 03 16 42.24 (0.04) | 03 16 42.23 (0.05) | 03 16 42.23 (0.05) | 03 16 42.24 | 03 16 42.12 (0.04) | 03 16 42.23 | 03 16 42.10 | ||||||
| Declination | 39 32 20.25 (0.04) | 39 32 20.33 (0.04) | 39 32 20.33 (0.04) | 39 32 20.25 | 39 32 22.85 (0.04) | 39 32 20.33 | 39 32 18.60 | ||||||
| Spectral type | DC | DC | DC | DC | DQ | DC | DC4.6 | ||||||
| Effective temperature | [K] | 8749.0 (86) | 8670.0 (26) | 8720.7 (74) | 11000.0 (1000) | 8288.0 (43) | |||||||
| log(g) | [cgs] | 8.07 (0.03) | 8.03 (0.006) | 8.08 (0.02) | 8.00 | 7.94 (0.009) | |||||||
| Mass | [M☉] | 0.623 (0.02) | 0.597 (0.005) | 0.58 | 0.542 (0.007) | ||||||||
| log(Luminosity) | [L☉] | ||||||||||||
| Cooling age | [Gyr] | 0.9900 | |||||||||||
| log(H/He) | -4.0 | ||||||||||||
| 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] | 26.41 (0.05) | 26.41 (0.05) | 26.39 (0.08) | 26.39 (0.08) | 26.39 (0.08) | 26.41 | 26.41 (0.05) | 26.39 (0.08) | ||||
| Distance | [pc] | 37.86 (0.07) | 37.86 (0.07) | 37.89 (0.1) | 37.90 (0.1) | 37.90 (0.1) | 56.00 | 37.86 | 37.86 (0.07) | 37.90 (0.1) | |||
| Composition | He | He | |||||||||||
| Proper motion (right ascension) | [mas/yr] | 82.36506313 (0.06) | 82.66220235 (0.2) | 82.365 (0.06) | 82.66220235 | ||||||||
| Proper motion (declination) | [mas/yr] | -162.6875672 (0.06) | -162.3238533 (0.1) | -162.688 (0.06) | -162.3238533 | ||||||||
| Variability | |||||||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | |||||||||||||
| B magnitude | 16.00 | ||||||||||||
| V magnitude | |||||||||||||
| R magnitude | 16.00 | ||||||||||||
| I magnitude | |||||||||||||
| J magnitude | 15.58 (0.01) | 15.52 (0.06) | |||||||||||
| H magnitude | 15.53 (0.1) | 15.53 (0.1) | |||||||||||
| K magnitude | 15.55 (0.2) | 15.55 (0.2) | |||||||||||
| u magnitude | 16.02 (0.005) | 16.05 (0.005) | |||||||||||
| g magnitude | 15.78 (0.004) | ||||||||||||
| r magnitude | 15.81 (0.004) | ||||||||||||
| i magnitude | 15.90 (0.004) | ||||||||||||
| z magnitude | 16.06 (0.007) | ||||||||||||
| G magnitude | 15.75 (0.002) | 15.77 | 15.77 | 15.75 | 15.75 (0.003) | 15.77 | |||||||
| BP magnitude | 15.82 (0.002) | 15.81 | 15.81 | ||||||||||
| RP magnitude | 15.61 (0.002) | 15.61 | 15.61 | ||||||||||
| Pan g magnitude | 15.80 (0.003) | 15.80 (0.003) | |||||||||||
| Pan r magnitude | 15.84 (0.003) | 15.84 (0.003) | |||||||||||
| Pan i magnitude | 15.95 (0.003) | 15.95 (0.002) | |||||||||||
| Pan z magnitude | 16.08 (0.002) | 16.08 (0.002) | |||||||||||
| Pan y magnitude | 16.16 (0.007) | 16.16 (0.007) | |||||||||||
| 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.