All names: NLTT 56636, Gaia DR3 2762076666146759040, SDSS J232200.60+094609.4, 23220+0946E, LP 582-43, SDSS J232200.61+094609.4, Gaia EDR3 2762076666146759040, USNO-B1.0 0997-00629470, WDJ232200.69+094610.63, PM J23220+0946E, J2322+0946, LSPM J2322+0946E, WD 2319+095, Gaia DR2 2762076666146759040
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | Caron et al. 2023 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Limoges et al. 2015 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 23 22 00.54 (0.1) | 23 22 00.55 (0.2) | 23 22 00.54 | 23 22 00.69 (0.1) | 23 22 00.55 | 23 22 01.85 | ||||||||
| Declination | 09 46 08.53 (0.1) | 09 46 08.59 (0.2) | 09 46 08.53 | 09 46 10.63 (0.1) | 09 46 08.59 | 09 46 27.48 | ||||||||
| Spectral type | DC: | DC: | DC: | DA | DA | DC: | ||||||||
| Effective temperature | [K] | 5174.0 (34) | 5409.0 (35) | 5636.0 | 5358.0 | 4490.0 (356) | 6010.0 (124) | |||||||
| log(g) | [cgs] | 7.60 (0.03) | 7.78 (0.03) | 7.94 | 7.76 | 8.00 (0) | 8.16 (0.04) | |||||||
| Mass | [M☉] | 0.359 (0.02) | 0.447 (0.02) | 0.553 | 0.433 | 0.58 (0.1) | 0.686 (0.04) | |||||||
| log(Luminosity) | [L☉] | -4.24 | ||||||||||||
| Cooling age | [Gyr] | 2.8700 | 2.5020 | 2.7720 | ||||||||||
| log(H/He) | -5.0 | |||||||||||||
| 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] | 13.80 (0.2) | 13.71 (0.3) | 13.71 (0.3) | 13.80 | 13.80 (0.2) | 13.71 (0.3) | |||||||
| Distance | [pc] | 72.49 (1) | 72.94 (1) | 72.93 (1) | 46.70 (12) | 72.49 | 72.49 (1) | 72.93 (1) | ||||||
| Composition | He | H | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | -133.6742136 (0.2) | -133.002 (0.5) | -133.674 (0.2) | -133.001685 | |||||||||
| Proper motion (declination) | [mas/yr] | -131.2860581 (0.2) | -131.442 (0.3) | -131.286 (0.2) | -131.4415984 | |||||||||
| Variability | ||||||||||||||
| Magnetic | ||||||||||||||
| Bd | [MG] | |||||||||||||
| Infrared excess (disk) | ||||||||||||||
| Binarity | yes | |||||||||||||
| B magnitude | 19.60 | |||||||||||||
| V magnitude | ||||||||||||||
| R magnitude | 18.30 | |||||||||||||
| I magnitude | ||||||||||||||
| J magnitude | 17.58 (0.04) | |||||||||||||
| H magnitude | 17.34 (0.07) | |||||||||||||
| K magnitude | 17.14 (0.08) | |||||||||||||
| u magnitude | 19.93 (0.05) | 19.93 (0.05) | 19.93 (0.05) | |||||||||||
| g magnitude | 18.98 (0.01) | 18.98 (0.01) | ||||||||||||
| r magnitude | 18.53 (0.009) | 18.53 (0.009) | ||||||||||||
| i magnitude | 18.35 (0.01) | 18.35 (0.01) | ||||||||||||
| z magnitude | 18.32 (0.03) | 18.32 (0.03) | ||||||||||||
| G magnitude | 18.56 (0.02) | 18.58 | 18.56 | 18.56 (0.003) | 18.58 | |||||||||
| BP magnitude | 18.87 (0.02) | 18.90 | 18.90 | |||||||||||
| RP magnitude | 18.09 (0.02) | 18.07 | 18.07 | |||||||||||
| Pan g magnitude | 18.92 (0.007) | 18.92 (0.006) | ||||||||||||
| Pan r magnitude | 18.53 (0.006) | 18.53 (0.007) | ||||||||||||
| Pan i magnitude | 18.37 (0.009) | 18.37 (0.007) | ||||||||||||
| Pan z magnitude | 18.34 (0.01) | 18.34 (0.01) | ||||||||||||
| Pan y magnitude | 18.25 (0.02) | 18.25 (0.02) | ||||||||||||
| E(B-V) | 0.007 | |||||||||||||
* 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.