During the week beginning Monday, August 3, 2026, and over the following weekend, there may be brief service interruptions due to data imports and database maintenance. Thank you for your understanding.
New transit
2/12/2026
HD189733 b
232
AAAV Ass.ne Astrofili Alta Valdera, Oss Astr G.Galilei-Libbiano Mpc code B33, 8/26/2008
RC 500 f/6 + CCD FLI PROLINE 4710
Clear Sky
Clear Sky
. . .
New transit
2/12/2026
HD189733 b
232
AAAV Ass.ne Astrofili Alta Valdera, Oss Astr G.Galilei-Libbiano Mpc code B33, 8/26/2008
RC 500 f/6 + CCD FLI PROLINE 4710
Clear Sky
Clear Sky
. . .
New transit
2/12/2026
HD189733 b
232
AAAV Ass.ne Astrofili Alta Valdera, Oss Astr G.Galilei-Libbiano Mpc code B33, 8/26/2008
RC 500 f/6 + CCD FLI PROLINE 4710
Clear Sky
Clear Sky
. . .
New transit
2/12/2026
HD189733 b
232
AAAV Ass.ne Astrofili Alta Valdera, Oss Astr G.Galilei-Libbiano Mpc code B33, 8/26/2008
RC 500 f/6 + CCD FLI PROLINE 4710
Clear Sky
Clear Sky
. . .
New transit
2/12/2026
HD189733 b
232
AAAV Ass.ne Astrofili Alta Valdera, Oss Astr G.Galilei-Libbiano Mpc code B33, 8/26/2008
RC 500 f/6 + CCD FLI PROLINE 4710
Clear Sky
Clear Sky
. . .
New transit
2/12/2026
HD189733 b
232
AAAV Ass.ne Astrofili Alta Valdera, Oss Astr G.Galilei-Libbiano Mpc code B33, 8/26/2008
RC 500 f/6 + CCD FLI PROLINE 4710
Clear Sky
Clear Sky
. . .
New transit
2/11/2026
HD189733 b
232
AAAV Ass.ne Astrofili Alta Valdera, Oss Astr G.Galilei-Libbiano Mpc code B33, 8/26/2008
RC 500 f/6 + CCD FLI PROLINE 4710
Clear Sky
Clear Sky
. . .
New transit
10/20/2025
HD189733 b
232
Vittorio Tortorella, De Ritis Telescope of the Federico II University, 10/8/2025
. . .
New observation
10/20/2025
HD189733
241
Vittorio Tortorella, De Ritis Telescope of the Federico II University, 10/8/2025
. . .
New transit
6/7/2023
HD189733 b
232
Eduardo Fernández Lajús, Romina P. Di Sisto, Complejo Astronómico El Leoncito, Argentina
0.6 m Telescope + SBIG STL 1001 CCD
. . .
New transit
10/9/2020
HD189733 b
232
Alfa Crucis – Colesanti C, De Carvalho Aguiar P, Kulh D, Napoleao T, Olim E, Rodrigues MA, Treü R, Orion Observatory - Mairinque, Sao Paulo, Brazil
12 inch Schmidt-Cassegrain (305mm, f/10), focal reducer f/3.3, Sensor: SBIG ST-7XME, Mount: Paramount MX
20s exposures binned 1x1. Each data point is the average of 3 images. Weighted ensemble photometry with 3 comp stars (C2,C4,C6), apertures 6,11,17. More about Alfa Crucis: https://alfacrucis.org/
20s exposures binned 1x1. Each data point is the average of 3 images. Weighted ensemble photometry with 3 comp stars (C2,C4,C6), apertures 6,11,17. More about Alfa Crucis: https://alfacrucis.org/
. . .
New transit
8/18/2020
HD189733 b
232
Tomáš Plšek, Roman Ponča, Masaryk University Mobile Observatory, Fulnek
Newtonian 150/750, MI G2-0402
. . .
New transit
7/10/2020
HD189733 b
232
AAAV Astrofili Valdera, Oss Astr G.Galilei-Libbiano Mpc code B33
RC 500 f/6 + CCD FLI Kodak KAF 1001E
AAAV-Ass.ne Astrofili Alta Valdera
(www.astrofilialtavaldera.it)
Observers: Silvia Gingillo, Lorenzo Bigazzi and Alberto Villa.
Clear sky.
Central obstruction 45 cm due to hight brightness of target.
AAAV-Ass.ne Astrofili Alta Valdera
(www.astrofilialtavaldera.it)
Observers: Silvia Gingillo, Lorenzo Bigazzi and Alberto Villa.
Clear sky.
Central obstruction 45 cm due to hight brightness of target.
. . .
New transit
10/16/2019
HD189733 b
232
Daniel Bertesteanu, Astroclubul Bucurest- Traian County Station
Newton 130/650 + QHY 163 M
8 sec exposure, 2 comparison stars
8 sec exposure, 2 comparison stars
. . .
New transit
7/3/2019
HD189733 b
232
Arena C. - Gruppo Astrofili Catanesi, Private Observatory in Catania - ObservatoryCT
Sky-Watcher NWT 200/1000 + Atik 314L + Coma Corrector (0.9x focal reducer)
Clear Sky. OAG used. 2 data point binning. Exp time 90 sec (before binning). The last group of points (out of transit, after a small gap in the data) was taken during astronomical and nautical sunrise. As such, exposure time for those points was reduced to 45 sec.
Clear Sky. OAG used. 2 data point binning. Exp time 90 sec (before binning). The last group of points (out of transit, after a small gap in the data) was taken during astronomical and nautical sunrise. As such, exposure time for those points was reduced to 45 sec.
. . .
New transit
8/31/2016
HD189733 b
232
OPC - Damiano Trisciani, OPC - Osservatorio Polifunzionale del Chianti
Celestron C14 f 6.4 - Moravian G2 1600
67 average 2 x 60 sec, 695nm bandpass filter, defocused
67 average 2 x 60 sec, 695nm bandpass filter, defocused
. . .