TIC 178723395
Eclipsing binaryProbably known
Notes
NOTE: SIMBAD already lists this star (TYC 7737-608-1) as type SB*, so it may be known after all - check the SIMBAD references.
Found automatically by hunt.py in TESS sector 9 (flagged in 1 sector(s)). Detection score 257.2.
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.
Updates:
2026-10-03 Gaia hints at a hidden companion star (RUWE 1.6)
2026-10-03 Found by the automatic search in TESS sector 9
The signal
| Type | Eclipsing binary |
| Status | Probably known |
| Period (days) | 1.76192 |
| Period source | hunt.py on TESS QLP sector 9 |
| Eclipse / dip depth | 2.6% |
| Amplitude | 0.4% |
| Data used | TESS sector 9 (QLP) |
The star (Gaia & TESS)
| Distance (pc) | 403 (~1,314 light years) |
| Temperature (Gaia) | 6,499 K |
| Size (Gaia) | 1.43 x the Sun |
| Mass (Gaia) | 1.28 x the Sun |
| Luminosity (Gaia) | 3.30 x the Sun |
| Colour, Gaia BP-RP | 0.63 |
| RUWE (Gaia) | 1.58 - hints at a hidden companion star |
| Radial velocity (Gaia) | speed changes by 106 km/s - likely an orbiting pair |
| Gaia G mag | 11.48 |
| TESS mag | 11.15 |
Names & neighbours
| TIC ID | 178723395 |
| Gaia DR3 ID | 5388947285076904832 |
| SIMBAD name | TYC 7737-608-1 [SB*] |
| Nearest known variable | Gaia DR3 5388945768949060736 (ROT), 128" away |
| RA (deg) | 166.145 |
| Dec (deg) | -43.2403 |
| Look it up | SIMBAD · VSX · ESASky · ExoFOP |
Record
| Found by | hunt.py (automatic) |
| Date | 2026-10-03 |
| Last update | 2026-10-03 |
Where it sits among the stars
ESA Gaia colour and true brightness. Grey: every Star Log candidate. Orange: this star.
Data files
- TIC178723395_s0009.fits 73 KB
- TIC178723395_s0009.png 38 KB
- thumb.png 41 KB
- meta.json
