TIC 278296621
Eclipsing binaryProbably known
Notes
NOTE: SIMBAD already lists this star (CD-81 244) as type EB*, so it may be known after all - check the SIMBAD references.
Found automatically by hunt.py in TESS sector 11 (flagged in 1 sector(s)). Detection score 1698.2.
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.
The signal
| Type | Eclipsing binary |
| Status | Probably known |
| Period (days) | 2.5 |
| Period source | hunt.py on TESS QLP sector 11 |
| Eclipse / dip depth | 5.1% |
| Amplitude | 2.5% |
| Data used | TESS sector 11 (QLP) |
The star (Gaia & TESS)
| Distance (pc) | 293 (~957 light years) |
| Temperature (Gaia) | 7,962 K |
| Size (Gaia) | 1.71 x the Sun |
| Mass (Gaia) | 1.72 x the Sun |
| Luminosity (Gaia) | 10.42 x the Sun |
| Colour, Gaia BP-RP | 0.37 |
| RUWE (Gaia) | 1.35 - fits a single star |
| Radial velocity (Gaia) | speed changes by 77 km/s - likely an orbiting pair |
| Gaia G mag | 9.79 |
| TESS mag | 9.603 |
Names & neighbours
| TIC ID | 278296621 |
| Gaia DR3 ID | 5206772708160816128 |
| SIMBAD name | CD-81 244 [EB*] |
| Nearest known variable | none within 5' |
| RA (deg) | 112.988 |
| Dec (deg) | -81.9955 |
| Look it up | SIMBAD · VSX · ESASky · ExoFOP |
Record
| Found by | hunt.py (automatic) |
| Date | 2026-10-04 |
Where it sits among the stars
ESA Gaia colour and true brightness. Grey: every Star Log candidate. Orange: this star.
Data files
- TIC278296621_s0011.fits 79 KB
- TIC278296621_s0011.png 39 KB
- thumb.png 20 KB
- meta.json
