The elusive Leo II galaxy

Leo I was the only dwarf galaxy I knew in the Leo constellation. On the Grandpre observation weekend, one of the observing challenges was Leo II. So I got a quick snapshot of it (only 90 minutes) to have an idea.

It turns out well in the picture, clearly visible as a galaxy but also some of the brightest stars (around mag 20).

One tiny galaxy peers through Leo II (left inside of Leo II). This is (ref:Skysafari catalogues) PGC5250798, a magn. +21 galaxy distant at an incredible 6 billion lightyears, and even more incredible, receeding at an asthonishing rate ot 109817 km per second. That is 36% of light speed.

Leo II itself is magnitude 11th, with dimensions 14.8′ x12.2′. It’s only 457 thousand light years away (for times the diameter of our own galaxy). It is also really small with a diameter of 1961 lightyears.

(click on the image for a larger view)

Leo II March 2022 Esprit 120 F7 EQ8 ASI2600MC 18x300s or 90′ SQM 21,60 Astropixelprocessor and PS Elements

James Webb Space Telescope @ Langrange 2

This week the JWST reached it’s final destination, the 2nd Lagrange point, where he will turn ellipses as long as fuel allows.

It took a lot “analysis” to be sure of the identification, but I could image the telescope last night. The apparent magnitude was pretty low, estimated around mag. 17.0

At the upper left of the object is a small triangle of stars, with a fourth weaker star in the triangle. This star is listed as magnitude 16,5.

FITT grey image stacked 120mm Esprit F7

JWST on January 27th, 2022 Image solved with astrometry

This website only uses statistical cookies. No personal data is collected or shared.