All names: IRAS 12452+0436, WVFSCC J124750+041919, Z 1245.2+0436, SDSS J124746.52+042009.7, TC 244, UZC J124746.5+042009, NGC 4688, MCG+01-33-013, [M98c] 124514.0+043627, SDSS J124747.00+041959.2, Z 43-28, LEDA 43189, SDSS J124746.52+042009.78, UGC 7961, SDSS J124746.52+042009.6, EVCC 1167, 2MASX J12474646+0420098, Gaia DR2 3705623188000654592, [BEC2010] HRS 255, Gaia DR3 3705623192293650944, PSCz Q12452+0436, [HDL96] 43 24, HIPASS J1247+04
| Parameter | Unit | SDSS DR10 | Gaia DR2 | Stilism | Kepler et al. 2015 | Simbad |
|---|---|---|---|---|---|---|
| Right ascension | 12 47 46.52 | 12 47 46.52 (2) | 12 47 46.52 (1) | |||
| Declination | 04 20 09.69 | 04 20 09.76 (1) | 04 20 09.77 (0.7) | |||
| Spectral type | DAZ: | |||||
| Effective temperature | [K] | 89520.0 (6360) | ||||
| log(g) | [cgs] | 7.06 (0.2) | ||||
| Mass | [M☉] | |||||
| log(Luminosity) | [L☉] | |||||
| Cooling age | [Gyr] | |||||
| log(H/He) | ||||||
| log(C/He) | ||||||
| log(Ca/He) | ||||||
| log(Ca/H) | ||||||
| Parallax | [mas] | 1.78 (2) | 1.78 (2) | |||
| Distance | [pc] | 560.51 (611) | 560.51 (611) | |||
| Composition | ||||||
| Proper motion (right ascension) | [mas/yr] | -1.202287205 (3) | 0.743 (2) | |||
| Proper motion (declination) | [mas/yr] | 1.504556694 (2) | -0.552 (2) | |||
| Variability | ||||||
| Magnetic | ||||||
| Bd | [MG] | |||||
| Infrared excess (disk) | ||||||
| Binarity | ||||||
| B magnitude | 14.50 | |||||
| V magnitude | ||||||
| R magnitude | ||||||
| I magnitude | ||||||
| J magnitude | 12.33 (0.09) | |||||
| H magnitude | 11.32 (0.06) | |||||
| K magnitude | 11.16 (0.1) | |||||
| u magnitude | 15.79 (0.01) | 20.26 (0.1) | 15.74 (0.01) | |||
| g magnitude | 14.60 (0.003) | 19.40 (0.08) | 14.60 (0.003) | |||
| r magnitude | 13.93 (0.003) | 18.59 (0.04) | 13.93 (0.003) | |||
| i magnitude | 13.71 (0.003) | 18.61 (0.03) | 13.74 (0.002) | |||
| z magnitude | 13.54 (0.006) | 18.69 (0.04) | 13.54 (0.006) | |||
| G magnitude | 20.03 | 20.55 (0.01) | ||||
| BP magnitude | ||||||
| RP magnitude | ||||||
| Pan g magnitude | ||||||
| Pan r magnitude | ||||||
| Pan i magnitude | ||||||
| Pan z magnitude | ||||||
| Pan y magnitude | ||||||
| E(B-V) | 0.021 | |||||
* 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.