All names: SDSS J234857.96+430038.9, PSO J357.2422+43.0100, Gaia DR3 1922778419431649280, WDJ234857.91+430039.83, PM J23489+4300, LP 239-54, 2MASS J23485788+4300400, LSPM J2348+4300, Gaia EDR3 1922778419431649280, 23489+4300, J2348+4300, NLTT 58060, SDSS J234857.97+430038.91, Gaia DR2 1922778419431649280, TIC 177251444, SDSS J234857.97+430038.9, USNO-B1.0 1330-00610697
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR10 | Caron et al. 2023 | Blouin et al. 2019 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Limoges et al. 2015 | Kepler et al. 2015 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 23 48 58.15 (0.07) | 23 48 57.97 | 23 48 58.14 (0.1) | 23 48 58.15 | 23 48 57.91 (0.07) | 23 48 58.14 | ||||||||||
| Declination | 43 00 35.87 (0.06) | 43 00 38.92 | 43 00 35.99 (0.08) | 43 00 35.87 | 43 00 39.82 (0.06) | 43 00 35.99 | ||||||||||
| Spectral type | DC | DC | DC | DC | DC | DC: | DC | DC | DA: | |||||||
| Effective temperature | [K] | 4788.0 (17) | 4750.0 (20) | 4762.0 | 4456.0 | 4810.0 (63) | 6255.0 (500) | 4744.0 (36) | ||||||||
| log(g) | [cgs] | 7.29 (0.01) | 7.26 (0.03) | 7.27 | 7.02 | 8.00 (0) | 4.41 (0.5) | 7.25 (0.03) | ||||||||
| Mass | [M☉] | 0.249 (0.007) | 0.239 (0.009) | 0.241 | 0.164 | 0.58 (0.1) | 0.236 (0.01) | |||||||||
| log(Luminosity) | [L☉] | -4.11 | ||||||||||||||
| Cooling age | [Gyr] | 2.1000 | 2.1100 (0.06) | 2.1100 | 2.0150 | |||||||||||
| 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] | 19.06 (0.1) | 18.93 (0.1) | 18.93 (0.1) | 18.93 (0.1) | 19.06 | 19.06 (0.1) | 18.93 (0.1) | ||||||||
| Distance | [pc] | 52.46 (0.3) | 52.83 (0.4) | 52.82 (0.4) | 52.82 (0.4) | 36.20 (4) | 52.46 | 52.46 (0.3) | 52.82 (0.4) | |||||||
| Composition | H | H | H | |||||||||||||
| Proper motion (right ascension) | [mas/yr] | 167.2743752 (0.09) | 167.2895554 (0.2) | 162.0 | 167.274 (0.09) | 167.2895554 | ||||||||||
| Proper motion (declination) | [mas/yr] | -247.0487602 (0.07) | -247.3422277 (0.1) | -247.0 | -247.049 (0.07) | -247.3422277 | ||||||||||
| Variability | ||||||||||||||||
| Magnetic | ||||||||||||||||
| Bd | [MG] | |||||||||||||||
| Infrared excess (disk) | ||||||||||||||||
| Binarity | ||||||||||||||||
| B magnitude | 18.60 | |||||||||||||||
| V magnitude | ||||||||||||||||
| R magnitude | 17.50 | |||||||||||||||
| I magnitude | ||||||||||||||||
| J magnitude | 16.49 (0.02) | 16.67 (0.1) | 16.67 | 16.67 (0.1) | ||||||||||||
| H magnitude | 15.95 (0.1) | 15.95 (0.1) | 15.95 | 15.95 (0.1) | ||||||||||||
| K magnitude | 15.74 (0.2) | 15.74 (0.2) | 15.74 | 15.74 (0.2) | ||||||||||||
| u magnitude | 20.32 (0.04) | 20.31 (0.04) | 20.32 | 20.32 (0.04) | 20.32 (0.04) | 20.32 (0.04) | ||||||||||
| g magnitude | 18.64 (0.008) | 18.64 | 18.64 (0.01) | 18.52 (0.007) | 18.64 (0.008) | |||||||||||
| r magnitude | 17.81 (0.006) | 17.81 | 17.81 (0.01) | 17.82 (0.004) | 17.81 (0.006) | |||||||||||
| i magnitude | 17.50 (0.006) | 17.50 | 17.50 (0.01) | 17.50 (0.009) | 17.50 (0.006) | |||||||||||
| z magnitude | 17.35 (0.01) | 17.36 | 17.35 (0.01) | 17.41 (0.005) | 17.35 (0.01) | |||||||||||
| G magnitude | 17.85 (0.02) | 17.87 | 17.85 | 17.85 (0.003) | 17.87 | |||||||||||
| BP magnitude | 18.41 (0.02) | 18.40 | 18.40 | |||||||||||||
| RP magnitude | 17.17 (0.007) | 17.18 | 17.18 | |||||||||||||
| Pan g magnitude | 18.52 (0.009) | 18.52 (0.007) | 18.52 (0.007) | |||||||||||||
| Pan r magnitude | 17.82 (0.005) | 17.82 (0.004) | 17.82 (0.004) | |||||||||||||
| Pan i magnitude | 17.50 (0.009) | 17.50 (0.009) | 17.50 (0.009) | |||||||||||||
| Pan z magnitude | 17.41 (0.005) | 17.41 (0.005) | 17.41 (0.005) | |||||||||||||
| Pan y magnitude | 17.39 (0.01) | 17.39 (0.007) | 17.39 (0.007) | |||||||||||||
| E(B-V) | 0.003 | |||||||||||||||
* 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.