TIC 367811460

Eclipsing binaryRare, already known

Rare & notable finds

Something genuinely unusual turned up. Treat it as a lead: every one of these has ordinary explanations too, listed with each. How these checks work →

Already known: in SIMBAD as TYC 3887-1033-1 (*); catalogued variable star nearby: Gaia DR3 1418866055670134528 (RS), 229" away. The rare-find check confirms what is on record - still nice, but not a new discovery.

Microlensing (rogue planet?) significant
A one-off, symmetric brightening at BTJD 3465.57 that fits the gravitational-lens shape better than a flare (Einstein time 4.8 h). Events this short can be made by a free-floating (rogue) planet passing in front of the star. Very rare in TESS data; scattered light and asteroids can mimic it.
Extra dips outside the eclipses hint
1 dip(s) that don't belong to the eclipses (at BTJD 3469.54): a planet orbiting both stars (circumbinary, like Kepler-16b) makes dips at irregular times, or a third star.

Checked, nothing found (8)

Exocomet-shaped dip · Eclipse timing (third body?) · Eccentric eclipsing binary · Eclipses changing depth · Pulsating star in an eclipsing binary · Heartbeat star · Self-lensing binary · Type of star

Checked 2026-10-11 18:38 on NVIDIA GeForce RTX 4070, using every TESS sector of this star. All results (.json)

Notes

Rare, already known: Microlensing (rogue planet?); Extra dips outside the eclipses (in SIMBAD as TYC 3887-1033-1 (*); catalogued variable star nearby: Gaia DR3 1418866055670134528 (RS), 229" away). Found automatically by hunt.py in TESS sector 20 (flagged in 2 sector(s)). Detection score 1506.0. 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: 2026-10-11 Rare-find check: Microlensing (rogue planet?); Extra dips outside the eclipses 2026-10-11 Gaia hints at a hidden companion star (RUWE 27.8) 2026-10-11 Found by the automatic search in TESS sector 20

The signal

Type	Eclipsing binary
Status	Rare, already known
Period (days)	2.74985
Period source	hunt.py on TESS QLP sector 20
Eclipse / dip depth	8.0%
Amplitude	2.8%
Data used	TESS sector 20 (QLP)

The star (Gaia & TESS)

Distance (pc)	346 (~1,128 light years)
Temperature (Gaia)	5,716 K
Size (Gaia)	1.96 x the Sun
Mass (Gaia)	1.15 x the Sun
Luminosity (Gaia)	3.72 x the Sun
Colour, Gaia BP-RP	0.90
RUWE (Gaia)	27.75 - hints at a hidden companion star
Radial velocity (Gaia)	speed changes by 95 km/s - likely an orbiting pair
Gaia G mag	11.02
TESS mag	10.52

Names & neighbours

TIC ID	367811460
Gaia DR3 ID	1418853720524060544
SIMBAD name	TYC 3887-1033-1 [*]
Nearest known variable	Gaia DR3 1418866055670134528 (RS), 229" away
RA (deg)	257.819
Dec (deg)	52.7785
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.

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Data files

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