LSPM J1228+3300
All names: 2MASS J12280160+3300366, 12280+3300, PSO J187.0067+33.0093, TIC 383525142, LP 266-58, Gaia DR2 4015951102167164032, SDSS J122801.59+330035.6, PM J12280+3300, NLTT 30811, LSPM J1228+3300, SDSS J122801.59+330035.57, Gaia DR3 4015951102167164032, WD 1225+332, SDSS J122801.59+330035.5, WDJ122801.57+330036.27, Gaia EDR3 4015951102167164032, USNO-B1.0 1230-00247371, J1228+3300
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR10 | SDSS DR12 | Kilic et al. 2025 | 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 | White Dwarf Catalog (McCook & Sion 1999) | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 12 28 01.62 (0.1) | 12 28 01.59 | 12 28 01.59 | 12 28 01.62 (0.2) | 12 28 01.62 | 12 28 01.57 (0.1) | 12 28 01.62 | 12 28 01.68 | |||||||||||
| Declination | 33 00 33.45 (0.07) | 33 00 35.55 | 33 00 35.55 | 33 00 33.54 (0.09) | 33 00 33.45 | 33 00 36.27 (0.07) | 33 00 33.54 | 33 00 30.96 | |||||||||||
| Spectral type | DC | DC | DC | DC | DC | DC | DC: | DC | DC | DC | DC | DC | |||||||
| Effective temperature | [K] | 4580.0 (24) | 4600.0 (22) | 4560.0 (30) | 4544.0 | 4231.0 | 4630.0 (75) | 6159.0 (500) | 4591.0 (42) | ||||||||||
| log(g) | [cgs] | 7.25 (0.02) | 7.29 (0.02) | 7.24 (0.04) | 7.23 | 6.96 | 8.00 (0) | 4.43 (0.5) | 7.23 (0.03) | ||||||||||
| Mass | [M☉] | 0.232 (0.007) | 0.247 (0.009) | 0.232 (0.01) | 0.228 | 0.149 | 0.58 (0.1) | 0.229 (0.01) | |||||||||||
| log(Luminosity) | [L☉] | -4.18 | |||||||||||||||||
| Cooling age | [Gyr] | 2.4100 | 2.3520 (0.08) | 2.3480 | |||||||||||||||
| 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] | 19.03 (0.1) | 19.19 (0.2) | 19.19 (0.2) | 19.19 (0.2) | 19.03 | 19.03 (0.1) | 19.19 (0.2) | |||||||||||
| Distance | [pc] | 52.55 (0.4) | 52.11 (0.5) | 52.12 (0.5) | 52.12 (0.5) | 35.70 (4) | 52.55 | 52.55 (0.4) | 52.12 (0.5) | ||||||||||
| Composition | H | H | H | H | |||||||||||||||
| Proper motion (right ascension) | [mas/yr] | 38.87420071 (0.1) | 38.77716653 (0.3) | 38.874 (0.1) | 38.777 | ||||||||||||||
| Proper motion (declination) | [mas/yr] | -176.3077919 (0.1) | -176.385215 (0.2) | -176.308 (0.1) | -176.385 | ||||||||||||||
| Variability | |||||||||||||||||||
| Magnetic | |||||||||||||||||||
| Bd | [MG] | ||||||||||||||||||
| Infrared excess (disk) | |||||||||||||||||||
| Binarity | |||||||||||||||||||
| B magnitude | 18.60 | ||||||||||||||||||
| V magnitude | |||||||||||||||||||
| R magnitude | 17.70 | ||||||||||||||||||
| I magnitude | |||||||||||||||||||
| J magnitude | 16.56 (0.01) | 16.70 (0.1) | 16.70 | 16.70 (0.1) | |||||||||||||||
| H magnitude | 16.16 (0.2) | 16.16 (0.2) | 16.16 | 16.16 (0.2) | |||||||||||||||
| K magnitude | 16.01 (0.2) | 16.01 (0.2) | 16.01 | 16.01 (0.2) | |||||||||||||||
| u magnitude | 20.74 (0.07) | 20.74 (0.07) | 20.74 (0.07) | 20.71 | 20.74 (0.07) | 20.73 (0.07) | 20.73 (0.07) | ||||||||||||
| g magnitude | 18.89 (0.009) | 18.89 (0.009) | 18.88 | 18.89 (0.01) | 18.89 (0.009) | 18.89 (0.009) | |||||||||||||
| r magnitude | 17.98 (0.006) | 17.98 (0.006) | 17.97 | 17.98 (0.01) | 17.97 (0.004) | 17.98 (0.006) | |||||||||||||
| i magnitude | 17.63 (0.007) | 17.63 (0.007) | 17.61 | 17.63 (0.01) | 17.65 (0.004) | 17.63 (0.007) | |||||||||||||
| z magnitude | 17.48 (0.01) | 17.48 (0.01) | 17.46 | 17.48 (0.01) | 17.53 (0.004) | 17.48 (0.01) | |||||||||||||
| G magnitude | 18.01 (0.01) | 18.03 | 18.01 | 18.01 (0.003) | 18.03 | ||||||||||||||
| BP magnitude | 18.57 (0.01) | 18.63 | 18.63 | ||||||||||||||||
| RP magnitude | 17.28 (0.009) | 17.30 | 17.30 | ||||||||||||||||
| Pan g magnitude | 18.78 (0.01) | 18.78 (0.01) | 18.78 (0.01) | ||||||||||||||||
| Pan r magnitude | 17.97 (0.003) | 17.97 (0.004) | 17.97 (0.004) | ||||||||||||||||
| Pan i magnitude | 17.65 (0.005) | 17.65 (0.004) | 17.65 (0.004) | ||||||||||||||||
| Pan z magnitude | 17.53 (0.004) | 17.53 (0.004) | 17.53 (0.004) | ||||||||||||||||
| Pan y magnitude | 17.49 (0.01) | 17.49 (0.01) | 17.49 (0.01) | ||||||||||||||||
| E(B-V) | 0.002 | ||||||||||||||||||
* Constant surface field
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