TIC 261644653
Eclipsing binaryProbably known
Notes
WARNING: same period as the known variable Gaia DR3 6378822347835856384 91" away; the signal is probably its light leaking in.
Found automatically by hunt.py in TESS sector 28 (flagged in 4 sector(s)). Detection score 82.7.
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) | 1.42859 |
| Period source | hunt.py on TESS QLP sector 28 |
| Eclipse / dip depth | 0.5% |
| Amplitude | 0.7% |
| Data used | TESS sector 28 (QLP) |
The star (Gaia & TESS)
| Distance (pc) | 818 (~2,668 light years) |
| Temperature (Gaia) | 6,646 K |
| Size (Gaia) | 2.70 x the Sun |
| Mass (Gaia) | 1.72 x the Sun |
| Luminosity (Gaia) | 12.86 x the Sun |
| Colour, Gaia BP-RP | 0.60 |
| RUWE (Gaia) | 1.18 - fits a single star |
| Radial velocity (Gaia) | speed changes by 29 km/s - likely an orbiting pair |
| Gaia G mag | 11.53 |
| TESS mag | 11.22 |
Names & neighbours
| TIC ID | 261644653 |
| Gaia DR3 ID | 6378821935518994176 |
| SIMBAD name | TYC 9344-464-1 [*] |
| Nearest known variable | Gaia DR3 6378822347835856384 (E, P = 1.4284 d), 91" away (same period!) |
| RA (deg) | 351.069 |
| Dec (deg) | -74.8848 |
| Look it up | SIMBAD · VSX · ESASky · ExoFOP |
Record
| Found by | hunt.py (automatic) |
| Date | 2026-10-12 |
Where it sits among the stars
ESA Gaia colour and true brightness. Grey: every Star Log candidate. Orange: this star.
Data files
- TIC261644653_s0028.fits 200 KB
- TIC261644653_s0028.png 70 KB
- thumb.png 128 KB
- meta.json
