New exoplanet transit: XO-7b

XO-7b is a gas giant exoplanet orbiting XO-7, an G0V- type star with an apparent magnitude of 10.5 and a size close to that of our Sun (Mass = 1.40 Msun, Radius = 1.48 Rsun).

Located in the constellation Ursa Minor, it is 764 light-years away from us and takes only 2.9 days to complete one orbit around its star. Its discovery
was announced in 2019. 

Its mass is 0.726 times that of Jupiter, and the distance to its star is 0.0432 AU.

Transit taken remotely on 16/12/2024 (with Moon at 98%) with TOA-150 telescope and STL-11000M camera (115 90-second exposures)

Link to transit in ExoClock. (page takes a few seconds to load)

More information about exoplanets and other transits here.

NGC 7635 The Bubble Nebula in Narrowband

This image is the new version of the nebula obtained with data remotely taken between September and November 2024, with Hydrogen alpha, Oxygen III and Sulphur II filters…Read more

NGC 7635 The Bubble Nebula (RGB data from 2012)

NGC7635 also called "Bubble Nebula" (Sharpless 162, Caldwell 11) is an emission nebula in the constellation Cassiopeia with a very particular "bubble" shape. It is 6 to 10 light years in size, and it was, created by the stellar wind from a central star (SAO 20575, BD+60 2522)…lRead more

C/2023 A3 Tsuchinshan-ATLAS

After several attempts frustrated by clouds, on 18/10/2024, I had the opportunity to take some images of comet C/2023 A3 Tsuchinshan-ATLAS from my observatory in Àger.

The first image is focused on detail and is taken with Takahashi TOA-150 and STL-11000M camera: 29 x 30 seconds of Luminance plus 11 x 20 seconds of R, G and B (those taken with FSQ-106N)…Read more

IC 5146: The Cocoon nebula

IC 5146 The Cocoon nebula (also known as Caldwell 19, Sh2-125 and Barnard 168) is a nebula in the constellation Cygnus. 

Its distance from us varies according to the sources consulted, ranging from 2500 to 4000 light-years. This beautiful nebula is nearly 15 light-years wide…Read more

October 2024: Aurora Borealis again in Àger!

On Thursday 10 October 2024 we had the opportunity to see a new aurora borealis in Àger, 42º north latitude, for the second time in the year!!

The first episode was on 10 May this year. The first image is an unprocessed capture ,…Read more

M 76 the Little Dumbbell Nebula

Messier 76  (also known as M76, the Little Dumbbell Nebula or NGC650/651) is a planetary nebula in the constellation Perseus. 

This nebula was discovered by the French astronomer Pierre Méchain in 1780, and was included in the Charles Messier's catalogue of comet-like objects as number 76 as a double nebula without stars (for this reason, it was also catalogued as ,…Read more