All names: GALEX J152340.7+243451, SDSS J152340.79+243451.0, [SGR2010] J1523+2434, 2MASS J15234080+2434508, TIC 417519030, WD 1521+247, Gaia EDR3 1221973205653339008, SDSS J152340.80+243451.0, Gaia DR3 1221973205653339008, Gaia DR2 1221973205653339008, WIRED J152340.79+243451.0
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Bedard et al. 2020 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Simbad | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 15 23 40.79 (1) | 15 23 40.80 | 15 23 40.79 (1) | 15 23 40.79 | 15 23 40.79 (1) | 15 23 40.06 | 15 23 40.80 | ||||
| Declination | 24 34 51.01 (1) | 24 34 51.03 | 24 34 51.01 (1) | 24 34 50.99 | 24 34 51.01 (1) | 24 34 48.72 | 24 34 51.03 | ||||
| Spectral type | DA+M | DA+M | DA+M | DA1.3 M | DA+M | ||||||
| Effective temperature | [K] | 37791.0 (1458) | 39188.0 (1877) | 6303.0 (7) | |||||||
| log(g) | [cgs] | 7.88 (0.2) | 7.90 (0.3) | 5.78 (0.2) | |||||||
| Mass | [M☉] | 0.6 (0.09) | 0.62 (0.1) | ||||||||
| log(Luminosity) | [L☉] | -0.40 (0.1) | |||||||||
| Cooling age | [Gyr] | 0.0044 (0.0006) | |||||||||
| 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] | ||||||||||
| Distance | [pc] | 106.00 (76) | |||||||||
| Composition | H | ||||||||||
| Proper motion (right ascension) | [mas/yr] | ||||||||||
| Proper motion (declination) | [mas/yr] | ||||||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | WDMS | WDMS | |||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | 16.40 (0.1) | ||||||||||
| H magnitude | 15.77 (0.2) | ||||||||||
| K magnitude | 15.43 (0.2) | ||||||||||
| u magnitude | 18.67 (0.02) | 18.66 | 18.65 (0.02) | 18.66 | 18.66 (0.02) | ||||||
| g magnitude | 18.78 (0.008) | 18.77 | 18.78 (0.009) | 18.77 | 18.78 (0.02) | ||||||
| r magnitude | 18.63 (0.009) | 18.59 | 18.63 (0.009) | 18.58 | 18.61 (0.03) | ||||||
| i magnitude | 18.02 (0.009) | 18.01 | 18.02 (0.009) | 18.00 | 18.02 (0.02) | ||||||
| z magnitude | 17.57 (0.02) | 17.53 | 17.57 (0.02) | 17.53 | 17.57 (0.02) | ||||||
| G magnitude | 18.76 (0.02) | 18.57 | 18.76 (0.01) | ||||||||
| BP magnitude | 18.77 (0.02) | 18.74 | |||||||||
| RP magnitude | 17.60 (0.01) | 17.60 | |||||||||
| Pan g magnitude | 18.78 (0.008) | ||||||||||
| Pan r magnitude | 18.65 (0.004) | ||||||||||
| Pan i magnitude | 18.04 (0.004) | ||||||||||
| Pan z magnitude | 17.65 (0.007) | ||||||||||
| Pan y magnitude | 17.45 (0.008) | ||||||||||
| E(B-V) | 0.026 | ||||||||||
* 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.