Hemisphere:  Northern  ·  Constellation: Canes Venatici (CVn)
Getting plate-solving status, please wait...
La Superba (Y Canum Venaticorum - one of the reddest 'carbon stars'), 



    
        

            gigiastro
La Superba (Y Canum Venaticorum - one of the reddest 'carbon stars')
Powered byPixInsight

La Superba (Y Canum Venaticorum - one of the reddest 'carbon stars')

Getting plate-solving status, please wait...
La Superba (Y Canum Venaticorum - one of the reddest 'carbon stars'), 



    
        

            gigiastro
La Superba (Y Canum Venaticorum - one of the reddest 'carbon stars')
Powered byPixInsight

La Superba (Y Canum Venaticorum - one of the reddest 'carbon stars')

Technical card

Imaging telescopes or lenses: Canon EF 400mm f/5,6L USM

Imaging cameras: Canon EOS 60Da

Mounts: iOptron ZEQ25GT

Software: PixInsight  ·  DeepSkyStacker 3.3.4  ·  Noel Carboni's StarSpikes Pro 4  ·  Noel Carboni's Actions  ·  Elements Photoshop


Dates:Feb. 15, 2018

Frames: 82x30" (41')

Integration: 41'

Avg. Moon age: 29.18 days

Avg. Moon phase: 0.14%


Basic astrometry details

Astrometry.net job: 1944996

RA center: 12h 45' 7"

DEC center: +45° 26' 27"

Pixel scale: 2.262 arcsec/pixel

Orientation: 0.801 degrees

Field radius: 1.499 degrees


Resolution: 3174x3562

Locations: Home, Mestre, Venezia, Italy

Data source: Backyard

Description

(...) "take a look at rust-colored Y Canum Venaticorum. Y CVn is a variable star with a visual magnitude slowly ranging from 5 to 6. (...) Y is deep red not just because it is relatively cool

like other Arcturus red giants. Carbon-containing molecules like C2, C3, CN, and SiC in the star's

atmosphere absorb much of the blue light from the star, leaving it with an unusually vivid reddish orange color. The beauty of its spectrum earned it the name La Superba

from the 19th-century Italian spectroscopy pioneer Pietro Angelo Secchi".

(Sky & Telescope, May 2000, page 101)

darkness: Bortle's class 7~8

seeing 2~3 (Antoniadi)

cropping from original picture of 3465x5202 resolution

82x30s ISO 1600

20 dark

30 flat

10 dark flat

no bias

(unguided)

Comments

Sky plot

Sky plot

Histogram

La Superba (Y Canum Venaticorum - one of the reddest 'carbon stars'), 



    
        

            gigiastro