TIC 278684221
Eclipsing binaryProbably known
Notes
WARNING: same period as the known variable SSS_J063626.8-571454 33" away; the signal is probably its light leaking in.
Found automatically by hunt.py in TESS sector 32 (flagged in 18 sector(s)). Detection score 144.7.
Not in VSX, ASAS-SN or ZTF variable catalogues at the time of the search; not in Gaia DR3's variable lists.
Unchecked by hand yet: verify the period, nearby stars and a wider catalogue search.
The signal
| Type | Eclipsing binary |
| Status | Probably known |
| Period (days) | 1.24848 |
| Period source | hunt.py on TESS QLP sector 32 |
| Eclipse / dip depth | 2.2% |
| Amplitude | 3.2% |
| Data used | TESS sector 32 (QLP) |
The star (Gaia & TESS)
| Distance (pc) | 983 (~3,205 light years) |
| Temperature (Gaia) | 6,464 K |
| Size (Gaia) | 1.34 x the Sun |
| Mass (Gaia) | 1.26 x the Sun |
| Luminosity (Gaia) | 2.84 x the Sun |
| Colour, Gaia BP-RP | 0.66 |
| RUWE (Gaia) | 0.99 - fits a single star |
| Gaia G mag | 13.60 |
| TESS mag | 13.27 |
Names & neighbours
| TIC ID | 278684221 |
| Gaia DR3 ID | 5484627542836974848 |
| SIMBAD name | not in SIMBAD |
| Nearest known variable | SSS_J063626.8-571454 (EA, P = 0.62417 d), 33" away (same period!) |
| RA (deg) | 99.1088 |
| Dec (deg) | -57.2574 |
| Look it up | SIMBAD · VSX · ESASky · ExoFOP |
Record
| Found by | hunt.py (automatic) |
| Date | 2026-10-13 |
Where it sits among the stars
ESA Gaia colour and true brightness. Grey: every Star Log candidate. Orange: this star.
Data files
- TIC278684221_s0032.fits 205 KB
- TIC278684221_s0032.png 76 KB
- thumb.png 131 KB
- meta.json
