All names: WD 2346+436, 2MASS J23492946+4353073, SDSS J234929.47+435307.4, Gaia EDR3 1925876637043402368, Gaia DR3 1925876637043402368, GALEX J234929.5+435307, TIC 177252203, SDSS J234929.47+435307.3, SDSS J234929.52+435307.4, Gaia DR2 1925876632746552448
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Simbad | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 23 49 29.48 (0.4) | 23 49 29.48 | 23 49 29.48 (0.7) | 23 49 29.47 | 23 49 29.46 (0.4) | 23 49 29.50 | 23 49 29.47 | |||
| Declination | 43 53 07.44 (0.4) | 43 53 07.33 | 43 53 07.44 (0.5) | 43 53 07.30 | 43 53 07.45 (0.4) | 43 53 04.56 | 43 53 07.35 | |||
| Spectral type | DA+M | DA+dM | DA d | DA+M | ||||||
| Effective temperature | [K] | 12250.0 (2429) | 6300.0 (1) | |||||||
| log(g) | [cgs] | 8.16 (0.5) | 6.12 (0.2) | |||||||
| Mass | [M☉] | 0.71 (0.3) | ||||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | |||||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| Parallax | [mas] | -0.16 (0.6) | 0.54 (0.8) | 0.54 (0.8) | ||||||
| Distance | [pc] | 1836.88 (2731) | 1472.00 (718) | 1836.88 (2731) | ||||||
| Composition | ||||||||||
| Proper motion (right ascension) | [mas/yr] | 12.64662591 (0.5) | 12.085 (1) | 12.647 (0.5) | ||||||
| Proper motion (declination) | [mas/yr] | -0.486250429 (0.5) | -1.699 (0.9) | -0.486 (0.5) | ||||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | WDMS | WDMS | ||||||||
| B magnitude | ||||||||||
| V magnitude | ||||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | 16.28 (0.1) | |||||||||
| H magnitude | 15.58 (0.1) | |||||||||
| K magnitude | 15.13 (0.1) | |||||||||
| u magnitude | 20.80 (0.08) | 21.06 | 20.69 (0.07) | 21.06 | 20.71 (0.07) | |||||
| g magnitude | 20.07 (0.02) | 20.38 | 20.00 (0.02) | 20.38 | 20.04 (0.02) | |||||
| r magnitude | 19.54 (0.02) | 19.85 | 19.55 (0.01) | 19.85 | 19.55 (0.01) | |||||
| i magnitude | 18.43 (0.01) | 18.76 | 18.42 (0.01) | 18.76 | 18.46 (0.01) | |||||
| z magnitude | 17.70 (0.02) | 18.06 | 17.67 (0.02) | 18.05 | 17.70 (0.02) | |||||
| G magnitude | 19.30 (0.06) | 19.24 | 19.30 (0.007) | |||||||
| BP magnitude | 20.00 (0.06) | 19.96 | ||||||||
| RP magnitude | 17.95 (0.02) | 17.94 | ||||||||
| Pan g magnitude | 20.00 (0.02) | |||||||||
| Pan r magnitude | 19.50 (0.006) | |||||||||
| Pan i magnitude | 18.46 (0.005) | |||||||||
| Pan z magnitude | 17.84 (0.002) | |||||||||
| Pan y magnitude | 17.52 (0.01) | |||||||||
| E(B-V) | 0.112 | |||||||||
* 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.