All names: LP 002-697, 2MASS J22533787+8130410, PSO J343.4133+81.5114, LSPM J2253+8130E, WDS J22537+8130B, NLTT 55289, ** LDS 2014B, Gaia DR2 2286958798223194624, Gaia EDR3 2286958798223194624, LP 12-19, J2253+8130, 22536+8130, WDJ225338.11+813039.98, LP 2-697, PM J22536+8130, Gaia DR3 2286958798223194624, TIC 317066459, WD 2253+812
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | O'Brien et al. 2024 | Caron et al. 2023 | McCleery et al. 2020 | Tremblay et al. 2020 | Blouin et al. 2019 | Gaia DR2 | Tremblay et al. 2017 | Stilism | Limoges et al. 2015 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 22 53 39.58 (0.08) | 22 53 39.53 (0.1) | 22 53 39.53 (0.1) | 22 53 39.58 | 22 53 38.11 (0.08) | 22 53 39.53 | 22 53 39.79 | |||||||||
| Declination | 81 30 41.82 (0.09) | 81 30 41.76 (0.1) | 81 30 41.76 (0.1) | 81 30 41.81 | 81 30 39.99 (0.09) | 81 30 41.76 | 81 30 00.00 | |||||||||
| Spectral type | DC | DC | DC | DC | DC: | DC: | DC: | DC: | DC | DC: | ||||||
| Effective temperature | [K] | 5182.0 (170) | 5044.0 (74) | 5294.1 (83) | 5300.0 (80) | 3940.0 (35) | 5200.0 (652) | 5445.0 (47) | ||||||||
| log(g) | [cgs] | 8.06 (0.1) | 7.85 (0.03) | 8.15 (0.06) | 8.15 (0.06) | 6.93 (0.06) | 8.00 (0) | 8.21 (0.02) | ||||||||
| Mass | [M☉] | 0.605 (0.07) | 0.491 (0.02) | 0.129 (0.02) | 0.58 (0.1) | 0.717 (0.02) | ||||||||||
| log(Luminosity) | [L☉] | -3.98 | ||||||||||||||
| Cooling age | [Gyr] | 3.6400 | 2.3940 (0.2) | |||||||||||||
| 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] | 26.66 (0.09) | 26.66 (0.09) | 26.70 (0.1) | 26.70 (0.1) | 26.70 (0.1) | 26.70 (0.1) | 26.66 | 26.66 (0.09) | 26.70 (0.1) | ||||||
| Distance | [pc] | 37.51 (0.1) | 37.51 (0.1) | 37.45 (0.2) | 37.45 (0.2) | 37.45 (0.2) | 37.45 (0.2) | 27.70 (7) | 37.51 | 37.51 (0.1) | 37.45 (0.2) | |||||
| Composition | H | He | He | H | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | 203.8910043 (0.1) | 204.0196202 (0.2) | 203.891 (0.1) | 204.0196202 | |||||||||||
| Proper motion (declination) | [mas/yr] | 114.1560581 (0.1) | 114.4000916 (0.3) | 114.156 (0.1) | 114.4000916 | |||||||||||
| Variability | ||||||||||||||||
| Magnetic | ||||||||||||||||
| Bd | [MG] | |||||||||||||||
| Infrared excess (disk) | ||||||||||||||||
| Binarity | yes | |||||||||||||||
| B magnitude | 17.60 | |||||||||||||||
| V magnitude | 17.30 (0.1) | |||||||||||||||
| R magnitude | 16.00 | |||||||||||||||
| I magnitude | ||||||||||||||||
| J magnitude | 15.69 (0.3) | 15.69 (0.3) | 15.69 (0.3) | |||||||||||||
| H magnitude | ||||||||||||||||
| K magnitude | ||||||||||||||||
| u magnitude | ||||||||||||||||
| g magnitude | 18.27 (0.06) | |||||||||||||||
| r magnitude | 17.67 (0.004) | |||||||||||||||
| i magnitude | 17.26 (0.02) | |||||||||||||||
| z magnitude | 17.05 (0.002) | |||||||||||||||
| G magnitude | 17.65 (0.02) | 17.67 | 17.67 | 17.54 (0.003) | 17.65 | 17.65 (0.003) | 17.67 | |||||||||
| BP magnitude | 18.00 (0.02) | 18.04 | 18.04 | |||||||||||||
| RP magnitude | 16.94 (0.03) | 16.97 | 16.97 | |||||||||||||
| Pan g magnitude | 18.01 (0.04) | 18.01 (0.04) | 18.27 (0.06) | |||||||||||||
| Pan r magnitude | 17.52 (0.02) | 17.52 (0.02) | 17.66 (0.004) | |||||||||||||
| Pan i magnitude | 17.08 (0.01) | 17.08 (0.01) | 17.26 (0.02) | |||||||||||||
| Pan z magnitude | 17.24 (0.0009) | 17.24 (0.0009) | 17.05 (0.002) | |||||||||||||
| Pan y magnitude | 16.99 (0.008) | 16.99 (0.008) | 16.99 (0.02) | |||||||||||||
| 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.