Deep Sky Object in Spring
Abell 3574 (Galaxy Cluster in Centaurus)


Date & Time: Feb 22 2025, from 26:13 to 27:07 JST(+0900)
Mosaic of 2 flames with 6min. × 10shots
Optical: Meade 25cm(10") Schmidt-Cassegrain with conversion lens (f=1600mm, F6.3)
with IDAS LPS-P1 Light-pollution suppression filter
Auto-guided with Meade LX200 Equatorial & Lacerta M-GEN
Digital Camera: Nikon D810A
Location: Ooizumi, Hokuto city, Yamanashi pref.

Camera Settings: Recording Format...14bit CCD-RAW, converted to 16bit TIFF(4080×4080)
Device Size...20×20mm
Sensitivity...ISO4000, White Balance...Daylight


Abell 3574 / Galaxy Cluster, type 0 1 I
R.A.13h 49m 12.0s (2000.0)
Dec.-30°17' 00" (2000.0)
Apparent Size56.0'
# Galaxies31
Red Shift0.0148
Magnitude13.0
Distance205 million light yrs.
Supergalactic clusterCentaurus Supercluster
IC4329 / Galaxy, type SAB(s)0-
R.A.13h 49m 05.3s (2000.0)
Dec.-30°17' 45" (2000.0)
Apparent Size3.5×2.2'
Radial Velocity+4527km/s
Magnitude13.9
Distance205 million light yrs.
Group of GalaxiesAbell 3574
Other IDsESO 445-46, MCG -5-33-19
PGC 49025
This image captures a galaxy cluster located near the boundary between the constellations Centaurus and Hydra. It is situated approximately 2.5 degrees east of M83, a large spiral galaxy in the southern part of Hydra.
Abell 3574 is a relatively large galaxy cluster floating about 200 million light-years away. It contains around 30 galaxies within a span of just under 1 degree. The largest galaxy in the cluster is the elliptical galaxy IC4329, visible near the center of the image, with a major axis of 3.5 arcminutes and a brightness of 12th magnitude. This galaxy cluster forms the Centaurus Supercluster along with the massive Abell 3526 (the Centaurus Cluster) located 16 degrees to the southwest.
Numbers with 4 digits represent NGC #



Shapley8 (Abell 3558)
HCG40

Copyright(c) 2025 by Naoyuki Kurita, All rights reserved.
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