SBSS 1240+527
All names: SBSS 1240+527, SDSS J124231.06+522626.7, Gaia DR2 1569094249222340352, USNO-B1.0 1424-00268151, GALEX J124230.9+522626, Gaia EDR3 1569094249222340352, SDSS J124230.99+522627.0, SDSS J124231.07+522626.6, WDJ124231.09+522626.61, Gaia DR3 1569094249222340352
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Kilic et al. 2025b | MWDD H | MWDD HE | Gaia DR2 | Stilism | Raddi et al. 2015 | Vincent et al. 2024 | Simbad | Eisenstein et al. 2006 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 12 42 30.96 (0.06) | 12 42 31.08 | 12 42 30.97 (0.07) | 12 42 30.96 | 12 42 31.09 (0.06) | 12 42 31.07 | ||||||||
| Declination | 52 26 27.16 (0.08) | 52 26 26.65 | 52 26 27.14 (0.07) | 52 26 27.16 | 52 26 26.61 (0.08) | 52 26 26.72 | ||||||||
| Spectral type | DZAB | sd | sd | DZ | DABZ | SD_auto | DZ | |||||||
| Effective temperature | [K] | 10955.0 (205) | 12277.0 | 12905.0 | 13000.0 (300) | 11875.0 (334) | 31461.0 (452) | |||||||
| log(g) | [cgs] | 7.95 (0.03) | 8.13 | 8.14 | 8.00 | 7.89 (0.04) | 5.00 (0.006) | |||||||
| Mass | [M☉] | 0.555 (0.02) | 0.682 | 0.669 | 0.59 | 0.522 (0.03) | ||||||||
| log(Luminosity) | [L☉] | |||||||||||||
| Cooling age | [Gyr] | 0.4198 | 0.3890 | 0.3200 | ||||||||||
| log(H/He) | -4.0 | -3.68 (0.1) | ||||||||||||
| log(C/He) | <-4.70 | |||||||||||||
| log(Ca/He) | -7.12 | -6.53 (0.1) | ||||||||||||
| log(Ca/H) | ||||||||||||||
| log(N/He) | <-5.00 | |||||||||||||
| log(O/He) | -4.3 (0.1) | |||||||||||||
| log(Na/He) | -7.2 (0.2) | |||||||||||||
| log(Mg/He) | -5.26 (0.1) | |||||||||||||
| log(Al/He) | <-6.50 | |||||||||||||
| log(Si/He) | -5.3 (0.06) | |||||||||||||
| log(P/He) | <-6.60 | |||||||||||||
| log(S/He) | <-8.00 | |||||||||||||
| log(Cl/He) | ||||||||||||||
| log(Sc/He) | <-9.50 | |||||||||||||
| log(Ti/He) | -8.2 (0.2) | |||||||||||||
| log(V/He) | <-9 | |||||||||||||
| log(Cr/He) | -7.5 (0.2) | |||||||||||||
| log(Mn/He) | <-8.00 | |||||||||||||
| log(Fe/He) | -5.9 (0.1) | |||||||||||||
| log(Co/He) | ||||||||||||||
| log(Ni/He) | <-7.30 | |||||||||||||
| log(Cu/He) | ||||||||||||||
| log(Zn/He) | ||||||||||||||
| log(Ga/He) | ||||||||||||||
| log(Ge/He) | ||||||||||||||
| log(Sr/He) | ||||||||||||||
| Parallax | [mas] | 6.19 (0.09) | 6.23 (0.1) | 6.19 | 6.19 (0.09) | |||||||||
| Distance | [pc] | 161.45 (2) | 160.62 (3) | 164.00 | 161.45 | 161.45 (2) | ||||||||
| Composition | He | |||||||||||||
| Proper motion (right ascension) | [mas/yr] | -73.14777386 (0.08) | -73.08932413 (0.1) | -73.148 (0.08) | -72.5 | |||||||||
| Proper motion (declination) | [mas/yr] | 34.10150146 (0.1) | 33.8240009 (0.2) | 34.102 (0.1) | 33.3 | |||||||||
| Variability | ||||||||||||||
| Magnetic | ||||||||||||||
| Bd | [MG] | |||||||||||||
| Infrared excess (disk) | ||||||||||||||
| Binarity | ||||||||||||||
| B magnitude | 18.20 | |||||||||||||
| V magnitude | ||||||||||||||
| R magnitude | 18.20 | |||||||||||||
| I magnitude | ||||||||||||||
| J magnitude | ||||||||||||||
| H magnitude | ||||||||||||||
| K magnitude | ||||||||||||||
| u magnitude | 17.90 (0.01) | 17.90 (0.01) | 17.86 (0.03) | |||||||||||
| g magnitude | 17.74 (0.005) | 17.74 (0.005) | 17.75 (0.02) | |||||||||||
| r magnitude | 17.97 (0.007) | 17.97 (0.007) | 17.96 (0.02) | |||||||||||
| i magnitude | 18.19 (0.009) | 18.19 (0.009) | 18.18 (0.02) | |||||||||||
| z magnitude | 18.38 (0.03) | 18.38 (0.03) | 18.37 (0.04) | |||||||||||
| G magnitude | 17.85 (0.009) | 17.85 (0.003) | 17.88 | 17.85 | 17.85 (0.003) | |||||||||
| BP magnitude | 17.84 (0.009) | 17.84 (0.01) | 17.82 | |||||||||||
| RP magnitude | 17.89 (0.01) | 17.89 (0.02) | 17.87 | |||||||||||
| Pan g magnitude | 17.78 (0.006) | 17.78 (0.006) | ||||||||||||
| Pan r magnitude | 17.97 (0.006) | 17.97 (0.006) | ||||||||||||
| Pan i magnitude | 18.21 (0.006) | 18.21 (0.006) | ||||||||||||
| Pan z magnitude | 18.41 (0.01) | 18.41 (0.01) | ||||||||||||
| Pan y magnitude | 18.55 (0.02) | 18.55 (0.02) | ||||||||||||
| E(B-V) | 0.012 | |||||||||||||
* Constant surface field
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