TIC 420645189
Single dip / odd eventKnown to NASA (TOI)
Notes
Already known to NASA: TOI 1897.01 (FP).
Already on NASA's TESS list as TOI 1897.01 (FP).
Found automatically by hunt.py in TESS sector 25 (flagged in 3 sector(s)). Detection score 236.2.
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:
2026-10-11 Gaia hints at a hidden companion star (RUWE 1.4)
2026-10-11 Found on NASA's list of TESS planet candidates: TOI 1897.01 (FP)
2026-10-11 Planet check: Already known to NASA: TOI 1897.01 (FP)
2026-10-11 Found by the automatic search in TESS sector 25
The signal
| Type | Single dip / odd event |
| Status | Known to NASA (TOI) |
| Period source | hunt.py on TESS QLP sector 25 |
| Amplitude | 0.2% |
| Data used | TESS sector 25 (QLP) |
Planet check
| Verdict | Already known to NASA: TOI 1897.01 (FP) |
The star (Gaia & TESS)
| Distance (pc) | 159 (~519 light years) |
| Temperature (Gaia) | 5,663 K |
| Size (Gaia) | 1.11 x the Sun |
| Mass (Gaia) | 0.94 x the Sun |
| Luminosity (Gaia) | 1.14 x the Sun |
| Colour, Gaia BP-RP | 0.80 |
| RUWE (Gaia) | 1.45 - hints at a hidden companion star |
| Radial velocity (Gaia) | speed changes by 26 km/s - likely an orbiting pair |
| Gaia G mag | 10.56 |
| TESS mag | 10.14 |
Names & neighbours
| TIC ID | 420645189 |
| Gaia DR3 ID | 548075249022607744 |
| SIMBAD name | TOI-1897.02 [Pl?] |
| Nearest known variable | none within 5' |
| RA (deg) | 48.3696 |
| Dec (deg) | 75.2683 |
| Look it up | SIMBAD · VSX · ESASky · ExoFOP |
Record
| Found by | hunt.py (automatic) |
| Date | 2026-10-11 |
| Last update | 2026-10-11 |
Where it sits among the stars
ESA Gaia colour and true brightness. Grey: every Star Log candidate. Orange: this star.
Data files
- TIC420645189_s0025.fits 73 KB
- TIC420645189_s0025.png 39 KB
- thumb.png 30 KB
- meta.json
