Obituary: MNRAS 87, 251 (1927); Obs. 49, 293 (1926); PASP 38, 400 (1926); Pop. Astr. 35, 325 (1927)

Dreyer discovered 18 NGC-objects with Lord Rosse's 72" reflector at Birr Castle. They are published in Lawrence Parsons (4th Earl of Rosse) collection of all Birr observations; see: Observations of Nebulae and Clusters of Stars Made With the Six-foot and Three-foot Reflectors at Birr Castle From the Year 1848 up to the Year 1878, Scientific Transactions of the Royal Dublin Society Vol. II, 1878. The identifications in column "Other" refer to this work (G.C. are from Dreyer's supplement). 13 objects are non-stellar. Dreyer found most of the galaxies in the NGC 4005-group at the border of Leo and Come Berenices. NGC 3069 is identical to IC 580 (Javelle, Mar. 22, 1892). One object found by Dreyer, the galaxy NGC 3698 in UMA (G.C. 5565, found Mar. 18, 1876), is identical to NGC 3695 (G.C. 5564) discovered by Ball in 1867 with the same instrument.

NGC	Other	Con	Date	Type
372	G.C. 5146	PSC	Dec. 12, 1876	4 stars
373	G.C. 5147	PSC	Dec. 12, 1876	galaxy
709	G.C. 5195	AND	Nov. 18, 1877	galaxy
1195	G.C. 5297	ERI	Jan. 8, 1877	galaxy
1276	G.C. 5303	PER	Dec. 12, 1876	2 stars
1279	G.C. 5306	PER	Dec. 12, 1876	galaxy
1281	G.C. 5307	PER	Dec. 12, 1876	galaxy
1446		ERI	Jan. 8, 1877	star
2806	G.C. 5469	CNC	Mar. 22, 1876	star
3069	G.C. 5513	LEO	Mar. 15, 1876	galaxy
4009	i	LEO	Apr. 26, 1878	star
4011	e	LEO	Apr. 26, 1878	galaxy
4015	b	COM	Apr. 26, 1878	galaxy
4018	k	COM	Apr. 26, 1878	galaxy
4021	d	COM	Apr. 26, 1878	galaxy
4022	l	COM	Apr. 26, 1878	galaxy
4023	g	COM	Apr. 26, 1878	galaxy
5226		VIR	Apr. 5, 1877	galaxy

 

Birr Castle

72" Reflector