Two objects in NGC 4902

Credit Skyview

NGC 4902 Probable Unknown object before explosion

Image DSS

NGC 4902

Using AIPSO and SMOOTH ( SAO IMAGE DS 9 IRAF) probable object in circle connect with the center  of the galaxy

Detail in NGC 4902

Image Skyview  

Detail in  the circle

Is this a unknown object?
treatment Gustavo Detthow

NGC 4902 Without and with SN 2011A

Credit http://www.rochesterastronomy.org/snimages/

NGC 4902

Credit Skyview  treatment SAO Image  NGC 4902

SN 2011A data

2011A, CBET 2623 discovered 2011/01/02.30 by CHASE
Found in NGC 4902 at R.A. = 13h01m01s.19, Decl. = -14°31'34".8
Located 21".3 east and 46".5 south of the center of NGC 4902 (Discovery image (Discovery page)) (Joseph Brimacombe image)
Mag 16.9, Type IIn (References: SN 1991X, 1979E)

Pleiades open cluster M 45 with 21 Tauri and 22 Tauri into the circle

Credit David Malin 

                                                                                Royal Observatory Edinburgh and Anglo Australian Observatory

Comparative images

Comparative images  of the stars 21 Tauri  and 22 Tauri at  different wavelenghts

Region of Pleiades M 45

DSS2BLUE

DSS2RED

Astrofotografia: Comparative images DSS and 2MASS J

Astrofotografia: Comparative images DSS and 2MASS J

Gustavo Detthow IX Vel

Comparative images DSS and 2MASS J