TIC 171188975

Eclipsing binaryNew candidate

Rare & notable finds

Nothing rare: all 9 checks came back clear. What was checked →

Checked, nothing found (7)

Microlensing (rogue planet?) · Exocomet-shaped dip · Eclipse timing (third body?) · Eclipses changing depth · Pulsating star in an eclipsing binary · Extra dips outside the eclipses · Type of star

Checked 2026-10-12 09:02 on NVIDIA GeForce RTX 4070, using every TESS sector of this star. All results (.json)

Notes

Found automatically by hunt.py in TESS sector 15 (flagged in 1 sector(s)). Detection score 525.0. 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: 2026-10-10 Gaia hints at a hidden companion star (RUWE 42.1) 2026-10-10 Found by the automatic search in TESS sector 15

The signal

Type	Eclipsing binary
Status	New candidate
Period (days)	2.73311
Period source	hunt.py on TESS QLP sector 15
Eclipse / dip depth	8.4%
Amplitude	7.2%
Data used	TESS sector 15 (QLP)

The star (Gaia & TESS)

Distance (pc)	3,758 (~12,257 light years)
Temperature (Gaia)	5,953 K
Colour, Gaia BP-RP	0.76
RUWE (Gaia)	42.09 - hints at a hidden companion star
Radial velocity (Gaia)	speed changes by 28 km/s - likely an orbiting pair
Gaia G mag	11.78
TESS mag	11.34

Names & neighbours

TIC ID	171188975
Gaia DR3 ID	2071927103061087488
SIMBAD name	TYC 3137-294-1 [*]
Nearest known variable	Gaia DR3 2071927068701360768 (ROT), 38" away
RA (deg)	298.72
Dec (deg)	37.6425
Look it up	SIMBAD · VSX · ESASky · ExoFOP

Record

Found by	hunt.py (automatic)
Date	2026-10-10
Last update	2026-10-10

Where it sits among the stars

ESA Gaia colour and true brightness. Grey: every Star Log candidate. Orange: this star.

How to read this diagram →

Data files

Download everything (.zip)