TIC 343549172

Eclipsing binaryNotable, already known

Rare & notable finds

A notable find: not unheard of, but the kind of system astronomers are glad to have more of. How these checks work →

Already known: the catalogued variable GX Lac (EA/DM, 35" away) has the same period - its light leaks into TESS's big pixels; same period as the known variable GX Lac. The rare-find check confirms what is on record - still nice, but not a new discovery.

Transits of a giant star notable
Gaia places this star among the giants: planets transiting giants are rare, and a big star makes even a large planet's dip tiny.

Checked, nothing found (6)

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

Checked 2026-10-12 10:36 on NVIDIA GeForce RTX 4070, using every TESS sector of this star. All results (.json)

Notes

Notable, already known: Transits of a giant star (the catalogued variable GX Lac (EA/DM, 35" away) has the same period - its light leaks into TESS's big pixels; same period as the known variable GX Lac). WARNING: same period as the known variable GX Lac 35" away; the signal is probably its light leaking in. Found automatically by hunt.py in TESS sector 24 (flagged in 3 sector(s)). Detection score 487.2. 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: 2026-10-12 Rare-find check: Transits of a giant star 2026-10-11 Found by the automatic search in TESS sector 24

The signal

Type	Eclipsing binary
Status	Notable, already known
Period (days)	6.35157
Period source	hunt.py on TESS QLP sector 24
Eclipse / dip depth	67.3%
Amplitude	6.0%
Data used	TESS sector 24 (QLP)

The star (Gaia & TESS)

Distance (pc)	3,924 (~12,799 light years)
Temperature (Gaia)	4,716 K
Size (Gaia)	11.01 x the Sun
Mass (Gaia)	2.90 x the Sun
Luminosity (Gaia)	53.32 x the Sun
Colour, Gaia BP-RP	1.76
RUWE (Gaia)	0.98 - fits a single star
Gaia G mag	14.36
TESS mag	13.48

Names & neighbours

TIC ID	343549172
Gaia DR3 ID	2006984242583429504
SIMBAD name	not in SIMBAD
Nearest known variable	GX Lac (EA/DM, P = 6.3553 d), 35" away (same period!)
RA (deg)	341.563
Dec (deg)	56.8611
Look it up	SIMBAD · VSX · ESASky · ExoFOP

Record

Found by	hunt.py (automatic)
Date	2026-10-11
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)