ourney through the celestial wonders from LoTr 5 to NGC 4725, traversing a vast expanse of the cosmos captured in a captivating two-panel mosaic. Delve into the intricate details of distant galaxies, star clusters, and nebulae that adorn the cosmic landscape.

In this expansive mosaic, LoTr 5 and NGC 4725 emerge as focal points of cosmic beauty. LoTr 5, a lesser-known object, shares its celestial space with NGC 4725, a magnificent spiral galaxy. Each panel reveals a unique glimpse into the mysteries of the universe, inviting viewers to contemplate the vastness and complexity of the cosmos.

LoTr5 is a large, weak planetary nebula in the constellation of Chioma Berenice. LoTr 5 has the highest galactic latitude of any known planetary nebula, being only 1.5 degrees from the Galactic North Pole.

March 2021/ March 2022

Location: San Romualdo - Ravenna

Technosky Apo 130/900

Avalon M1 - QHY5III 174M on OAG Celestron

CCD QSI 520wsi cooled -20

Astrodon RGB GenII I-Series and Narrowband 5nm Filters

HA-OIII-RGB: H-alpha 44x15min, OIII 35x15min, R 30x5min, G 26x5min, B 30x5min

Acquired: MaximDL5 - Calibrated with Dark, Bias and Flat.

Processing: MaximDL5, Astroart8,Starnet2, Paint Shop Pro2022, Plugin Topaz and Nik.

Copyright: Cristina Cellini

Image Description and Details :

Here is a mosaic of 2 images with the main galaxies of the group NGC 4725 (located at about 55 million light-years) and the planetary nebula LoTr5, discovered in 1980 and located "only" at 1650 light-years from us!
The small galaxy NGC 4712, to the right of NGC 4725, is located more than 200 million light-years away.

A beautiful "cosmic perspective" with these different objects!

Mosaic of 2 images in LRGB + OIII. !

The framing of the first image was not intended for a mosaic with the nebula field, so an important part of the final field had to be cropped. The difference in sky quality resulted in a poor homogeneity of the sky background and a difficult connection between the two images, which did not facilitate the processing of this one.

A lot of time spent on processing to achieve a homogeneous result and highlight the nebula.

LRGB+OIII version
TSA102 - AtikOne6.0 - AZEQ6
L : 32 x 600s bin 1
RGB : 72 x 300s bin2
OIII : 18 x 600s bin2
Total : 14h20

Copyright: Jean-Baptiste Auroux