ExoClock

The Star
Simbad GAIA 2MASS	HAT-P-61 DR2 256580182331399296 J05015525+5007526
RA	05:01:55.2577		DEC	+50:07:52.574
Parallax 2.923 mas		P.M. RA -11.021 mas/y		P.M. DEC -21.44 mas/y
Mag_V 13.188	Mag_R 12.974	Mag_I^* 12.259	Mag_J 11.598	Mag_H 11.263	Mag_K 11.141
Mag_G 12.939		Mag_{G_BP} 13.407		Mag_{G_RP} 12.336
^*Calculated from GAIA magnitudes.

Ephemeris - Not verified
Bakos et al. 2021
Mid-time 2457851.21119 ± 0.00047 BJD_TDB
Period 1.90231289 ± 7.7e-07 days
Transit Parameters
Bakos et al. 2021
R_p/R_s 0.0984 ± 0.0025	a/R_s 6.9 +0.13 -0.13		i 83.62 +0.24 -0.24 deg
R_p/R_s 0.0984 ± 0.0025	e -		ω - deg
Depth_R^* 10.41 mmag		Duration^* 1.67 hours
^Calculated from the other parameters, using PyLightcurve. ^*Adjusted based on the space observations.
Limb Darkening Parameters
Bakos et al. 2021
T_eff 5587.0 +45.0 -45.0 K	Log(g) 4.5 +0.02 -0.02 cm/s²		Fe/H 0.194 +0.06 -0.06 dex

ExoClock Status
Observing Priority		LOW
Minimum aperture		11.09"
Total Observations (Recent)		36 (17)
O-C		0.51 ± 0.29 minutes
ExoClock Observations (Recent)		36 (17)
Space Observations (Recent)		0 (0)
ETD Observations (Recent)		0 (0)
Literature Mid-times (Recent)		0 (0)
Kepler R_p/R_s		-
TESS R_p/R_s		-

Planet Observation Date	Observer Observatory	Telescope Camera / Filter / Exp [s]	O-C minutes
ExoClock Observations
HAT-P-61b (LOW) 2024-02-19	Javier Flores Martín Calar Alto Hispano en Andalucia	Multi Array of Combinate Telescope (MARCOT) ZWO1600MM / Lum / 60.0	0.3 ± 1.58
HAT-P-61b (LOW) 2024-02-19	Enrique Arce Vallbona Observatory	Ritchey Chretien ZWO ASI 294 MM PRO / Lum / 300.0	-1.0 ± 2.45
HAT-P-61b (LOW) 2024-01-29	Javier Flores Martín CAHA	GSO40 zwo 1600mm pro / R / 120.0	4.68 ± 1.58
HAT-P-61b (LOW) 2024-01-29	Gustavo Muler Obs. Nazaret J47	lx 200 ST8 XME AO8 / R / 180.0	3.17 ± 0.91
HAT-P-61b (LOW) 2024-01-29	Mercedes Correa Teide Observatory	IAC80 Camelot2 / R / 120.0	1.94 ± 1.44
HAT-P-61b (LOW) 2024-01-16	Vikrant Kumar Agnihotri Cepheid Observatory India	GSO Ritchey–Chrétien Atik383L+ mono / Lum / 90.0	-3.11 ± 4.9
HAT-P-61b (LOW) 2024-01-12	Lionel Rousselot Private observatory Vierzon	Newton 250/740 ZWO 533 monochrome / Lum / 120.0	-0.34 ± 2.02
HAT-P-61b (LOW) 2024-01-10	Mark Salisbury POST	Orion Optics ODK SBIG ST-10 XME / Clear / 240.0	2.76 ± 1.22
HAT-P-61b (LOW) 2023-12-28	Lee YuHsien KMSH Observatory	C14HD QSI-660 / Clear / 30.0	-3.21 ± 3.02
HAT-P-61b (LOW) 2023-12-24	Ioannis Gkolias AUTH-3 hosted at S.P.I.C.A	RASA 11'' QHY163M / Lum / 60.0	2.3 ± 2.59
HAT-P-61b (LOW) 2023-12-03	Mario Morales-Aimar Observatorio de Sencelles MPC K14	Reflector 10" SBIG ST7-XME / Clear / 100.0	-0.96 ± 2.02
HAT-P-61b (LOW) 2023-11-11	Kevin Johnson Holbrook Observatory	Meade LX50 10" Atik 383L+ / Lum / 60.0	0.56 ± 1.87
HAT-P-61b (LOW) 2023-11-11	Martin Crow Burnham Observatory	Celestron C9.25 SX694 mono / Clear / 180.0	-4.76 ± 3.31
HAT-P-61b (LOW) 2023-10-23	Pieter Vuylsteke TheGardenToTheSkyFacility	TS ONTC 25cm f4.7 QHY 268M / rpr / 150.0	2.58 ± 1.32
HAT-P-61b (LOW) 2023-03-04	Ivo Peretto MarSEC Marana Space Explorer Center	R-C Moravia G2-1600 MkII / R / 120.0	4.89 ± 2.3
HAT-P-61b (LOW) 2023-03-04	Yves Jongen Rasteau Observatory	Plane Wave CDK 17" SBIG STXL 11002 / Lum / 180.0	-0.56 ± 1.32
HAT-P-61b (LOW) 2023-03-04	Dominique DANIEL La Montjoie	T250 Skyvision Camera CMOS ZWO ASI2600MC pro (color) / Clear / 180.0	-4.33 ± 5.62
HAT-P-61b (LOW) 2023-02-15	Francesco Scaggiante Gruppo Astrofili Salese "GALILEO GALILEI"	NEWTON 410/1710 Custom made with KAF-1603ME CCD sensor / R / 80.0	0.01 ± 3.6
HAT-P-61b (LOW) 2023-02-13	Michael Irzyk Melun	C14 H694 / Clear / 120.0	1.4 ± 1.3
HAT-P-61b (LOW) 2023-02-13	Kevin Johnson Holbrook Observatory	Meade LX50 10" Atik 383L+ / Clear / 270.0	0.28 ± 1.35
HAT-P-61b (LOW) 2023-02-12	Yves Jongen Rasteau Observatory	Plane Wave CDK 17" SBIG STXL 11002 / Lum / 120.0	-1.55 ± 1.12
HAT-P-61b (LOW) 2023-01-23	David Bennett Rickford Observatory	GSO RC ZWO ASI2600MM Pro / Lum / 150.0	-0.87 ± 1.44
HAT-P-61b (LOW) 2022-12-18	Francesco Scaggiante Gruppo Astrofili Salese "GALILEO GALILEI"	NEWTON 410/1710 Custom made with KAF-1603ME CCD sensor / R / 60.0	-2.72 ± 3.6
HAT-P-61b (LOW) 2022-12-15	Adrian Jones Private Observatory (I64)	Meade ACF 30cm QSI 583 / R / 200.0	-2.69 ± 2.02
HAT-P-61b (LOW) 2022-11-29	Mario Morales-Aimar Observatorio de Sencelles MPC K14	Reflector 10" SBIG ST7-XME / Clear / 180.0	-1.67 ± 1.44
HAT-P-61b (LOW) 2022-11-27	Antonino Brosio ABObservatory	Skywatcher Newton Quattro 300P Atik 383 L / rpr / 240.0	-4.1 ± 2.16
HAT-P-61b (LOW) 2022-11-06	Marco Stefanini Osservatorio Aldebaran	Ritchey-Chretien Altair Astro Atik 4000 LE / Lum / 250.0	3.01 ± 3.89
HAT-P-61b (LOW) 2022-09-29	Martin Crow Burnham Observatory	Celestron C9.25 SX694 mono / R / 150.0	2.09 ± 2.88
HAT-P-61b (LOW) 2022-09-26	Adam Popowicz Otivar dome2	Newton 12" ASA ASI ZWO 1600MM / R / 165.0	0.11 ± 2.3
HAT-P-61b (LOW) 2022-09-09	Dim Stouraitis Galilaios	SCT SXVF-H9 Starlight-Xpress / R / 120.0	2.72 ± 2.74
HAT-P-61b (LOW) 2022-03-19	Tõnis Eenmäe Tartu Observatory	Planewave CDK 12.5 Apogee Alta U42 / Lum / 120.0	-0.68 ± 1.41
HAT-P-61b (LOW) 2022-02-28	Manfred Raetz privat observatory Herges-Hallenberg	SCT 280 /1790 (Celestron C11 with reducer) Moravian Instruments G2-1600 / Clear / 120.0	-1.31 ± 1.01
HAT-P-61b (LOW) 2022-02-28	Mercedes Correa Sirius B	Meade Moravian G2 1600 / R / 120.0	-2.03 ± 2.88
HAT-P-61b (LOW) 2022-02-26	Marc Serrau A77 Dauban	Celestron 11 ST8-XME / Clear / 120.0	7.21 ± 4.32
HAT-P-61b (LOW) 2022-02-26	David Wright Yorick (private observatory)	10" Ritchey-Chretien QSI 683WSG-8 / R / 300.0	4.33 ± 4.32
HAT-P-61b (LOW) 2022-02-26	Lionel Rousselot Private observatory Vierzon	Newton 250/1200 ZWO 1600 monochrome / Lum / 120.0	0.15 ± 2.02

HAT-P-61b (LOW)

Discovered by: Bakos et al. 2021

ExoClock Observations