Markarian's Marvelous Chain: Tables for the Eastern and Western Extensions

By: Diana Hannikainen January 6, 2022 0

If you've read the April 2022 issue of Sky & Telescope and enjoyed Howard Banich's article on Markarian's Chain, you may be in search of tables of data for the Eastern and Western extensions of the Chain. You've come to the right place. You can also download the tables in PDF format here.

Western Extension

Object	Type	SB	Mag(v)	Size	Dist. (M l-y)	RA	Dec.
NGC 4305	Spiral	13.5	12.6	2.2′ × 1.2′	64.3	12^h 22.1^m	+12° 44′
NGC 4306	Barred lenticular	13.3	12.6	1.6′ × 1.3′	60	12^h 22.1^m	+12° 47′
NGC 4267	Barred lenticular	13.3	10.9	3.2′ × 3.0′	51.2	12^h 19.8^m	+12° 48′
IC 775	Barred lenticular	13.1	13.3	1.1′ × 0.8′	370	12^h 18.9^m	+12° 55′
NGC 4216	Spiral	12.8	10	8.1′ × 1.8′	59	12^h 15.9^m	+13° 09′
NGC 4206	Spiral	14	12.2	6.2′ × 1.0′	62.1	12^h 15.3^m	+13° 01′
NGC 4222	Spiral	13.7	13.3	3.3′ × 0.5′	64.2	12^h 16.4^m	+13° 18′
NGC 4193	Spiral	13	12.3	2.2′ × 1.0′	125	12^h 13.9^m	+13° 10′
NGC 4189	Spiral	13.1	11.7	2.4′ × 1.7′	84.2	12^h 13.8^m	+13° 26′
NGC 4168	Elliptical	13.2	11.2	2.8′ × 2.3′	102	12^h 12.3^m	+13° 12′

Angular sizes are from recent catalogs. Visually, an object’s size is often smaller than the cataloged value and varies according to the aperture and magnification of the viewing instrument. Right ascension and declination are for equinox 2000.0.

Eastern Extension

Object	Type	SB	Mag(v)	Size	Dist. (M l-y)	RA	Dec.
M88/NGC 4501	Spiral	13	9.6	6.9′ × 3.7′	65.1	12^h 32.0^m	+14° 25′
NGC 4459	Lenticular	12.7	10.4	3.5′ × 2.7′	49.9	12^h 29.0^m	+13° 59′
NGC 4468	Lenticular	13.1	12.8	1.4′ × 1.1′	51.5	12^h 29.5^m	+14° 03′
NGC 4474	Lenticular	12.7	11.5	2.4′ × 1.4′	52.8	12^h 29.9^m	+14° 04′