TIC 153949271

Eclipsing binaryRare, already known

Rare & notable finds

Something unusual, worth a look - less certain than a significant find. How these checks work →

Already known: in SIMBAD as 1RXS J113038.2+681102 (*); catalogued variable star nearby: Gaia DR3 1060861839850505984 (ROT), 89" away. The rare-find check confirms what is on record - still nice, but not a new discovery.

Extra dips outside the eclipses hint
1 dip(s) that don't belong to the eclipses (at BTJD 2595.02): a planet orbiting both stars (circumbinary, like Kepler-16b) makes dips at irregular times, or a third star.

Checked, nothing found (8)

Microlensing (rogue planet?) · Superflare · Exocomet-shaped dip · Eclipse timing (third body?) · Eccentric eclipsing binary · Eclipses changing depth · Pulsating star in an eclipsing binary · Type of star

Checked 2026-10-12 17:26 on NVIDIA GeForce RTX 4070, using every TESS sector of this star. All results (.json)

Notes

Rare, already known: Extra dips outside the eclipses (in SIMBAD as 1RXS J113038.2+681102 (*); catalogued variable star nearby: Gaia DR3 1060861839850505984 (ROT), 89" away). Found automatically by hunt.py in TESS sector 21 (flagged in 2 sector(s)). Detection score 401.9. 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: 2026-10-12 Rare-find check: Extra dips outside the eclipses 2026-10-09 Found by the automatic search in TESS sector 14

The signal

Type	Eclipsing binary
Status	Rare, already known
Period (days)	2.95191
Period source	hunt.py on TESS QLP sector 21
Eclipse / dip depth	9.2%
Amplitude	1.1%
Data used	TESS sector 21 (QLP)

The star (Gaia & TESS)

Distance (pc)	262 (~855 light years)
Temperature (Gaia)	5,040 K
Size (Gaia)	0.90 x the Sun
Luminosity (Gaia)	0.46 x the Sun
Colour, Gaia BP-RP	1.08
RUWE (Gaia)	1.00 - fits a single star
Radial velocity (Gaia)	speed changes by 80 km/s - likely an orbiting pair
Gaia G mag	12.77
TESS mag	12.23

Names & neighbours

TIC ID	153949271
Gaia DR3 ID	1060862183447889024
SIMBAD name	1RXS J113038.2+681102 [*]
Nearest known variable	Gaia DR3 1060861839850505984 (ROT), 89" away
RA (deg)	172.658
Dec (deg)	68.1847
Look it up	SIMBAD · VSX · ESASky · ExoFOP

Record

Found by	hunt.py (automatic)
Date	2026-10-09
Last update	2026-10-12

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)