197 Years Ago

[glenc (Glen)]

Wed 10 May 1826
Dunlop discovered the galaxy NGC 5643 at 23:06
He missed the nearby PN IC4406. DeLise Stewart found it in 1899 from Peru.

At 23:38 he discovered the small, concentrated Gb NGC 5824
John Herschel saw this from England in 1831 but missed it when he was at the Cape.
E E Barnard wrongly thought he was the first to see it in 1882.

Dunlop re-observed the Gb NGC 5927 at 0:04
He discovered the Gb NGC 5986 at 0:23.

He then observed the OC NGC 6067 again and Lacaille’s OC NGC 6124.
He missed the nearby PN NGC 6153. It was discovered by Ralph Copeland in 1883 from Peru.
Dunlop’s last object that night was a new OC, NGC 6134 at 1:03.

[glenc (Glen)]

V A van Wulfen arranged this list of Dunlop objects by constellation.
https://clearskies.eu/wp-content/upl...nlop-index.pdf

[glenc (Glen)]

Fri 12 May 1826
Dunlop revisited 6 objects including the Gx NGC 4945 and the Gb NGC 5286.

Sat 13 May 1826
The Moon set at 22:12 and Dunlop started observing after midnight.
He re-observed the beautiful OC NGC 6067 at 0:36.
At 0:53 he discovered the Gb NGC 6139.
At 1:19 he looked at the bright OC NGC 6231, Giovanni Hodierna found it in about 1654.
He saw the Gb M62 at 1:27, Charles Messier found it in 1771.
At 2am he discovered the bright, highly concentrated Gb NGC 6388.
He saw the OC M6 at 2:05. It was also found by Giovanni Hodierna in about 1654.
At 2:15 he discovered the Gb NGC 6441 next to mag 3.2 G Sco.
He also saw 10 other objects that night.

[Saturnine (Jeff)]

Thanks for the link to Dunlop by Constellation by van Wulfen, very handy for planning an observing session.

[glenc (Glen)]

Sunday 14 May 1826
The Moon set at 23:12 and Dunlop saw 11 objects that night.
The most interesting were the OC NGC 6193 at 1:01 and the Gb NGC 6352 at 1:45. He did not see the nebula NGC 6188 around 6193.
His next night was 25/5.

[glenc (Glen)]

Dunlop discovered the dark nebula D559 in CrA.
His description reads "A singular dark space in the heavens, of an irregular figure, about 1.5 deg long, and 1.5 deg broad, no stars except exceedingly minute stars in the greatest portion of this space. There is a bright star in each side."