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Last update: 2017-07-26

VdS FG

- Open Clusters & Asterisms (Sgr) -

And (3) Cep (22) Cyg (22) Lyr (2) Sct (4) Vir (1)
Aql (7) CMa (3) Del (1) Mon (7) Ser (2) Vul (8)
Aqr (1) CMi (1) Dra (1) Oph (3) Sge (1)
Aur (6) Cnc (3) Gem (8) Ori (11) Sgr (5)
Cam (4) Com (1) Her (3) Peg (1) Tau (6)
Cap (1) Crv (1) Hya (1) Per (13) Tri (1)
Cas (21) CVn (1) Lac (6) Pup (6) UMi (1)

M18 (OC)

DSS
© DSS II (red) - 15×15'
Name: M18, NGC6613
Type: OC
Constellation: Sgr
Coordinates: 18h19m58.00s / -17°06'06.0"
Brightness / Size: v6.9 mag / 9.0×9.0'
B 40mm, 8x, Bortle 4, SQM-L 20.9
Very compact, bright, not resolved.
EASY

M23 (OC)

DSS
© DSS II (red) - 40×40'
Name: M23, NGC6494
Type: OC
Constellation: Sgr
Coordinates: 17h57m04.00s / -18°59'06.0"
Brightness / Size: v5.5 mag / 27.0×27.0'
B 40mm, 8x, Bortle 4, SQM-L 20.9
Evident with apparently bright 6.48 mag star northwest. Cluster appeared round, diffuse with slight concentration toward the middle. With averted vision some outstanding stars.
EASY

M24 (OC)

DSS
© DSS II (red) - 120×120'
Name: M24, IC4715, Small Sagittarius Star Cloud
Type: OC
Constellation: Sgr
Coordinates: 18h16m48.00s / -18°33'00.0"
Brightness / Size: v3.1 mag / 95.0×35.0'
Messier 24 is a large star cloud in our Milky Way.

naked eye, Bortle 4, SQM-L 20.9
Seen with direct vision as oval brightening.

EASY
B 40mm, 8x, Bortle 4, SQM-L 20.9
Oval, rich with some brighter stars, but the background appeared still diffuse.
EASY

M25 (OC)

DSS
© DSS II (red) - 35×35'
Name: M25, IC4725
Type: OC
Constellation: Sgr
Coordinates: 18h31m47.00s / -19°07'00.0"
Brightness / Size: v4.6 mag / 29.0×29.0'
B 40mm, 8x, Bortle 4, SQM-L 20.9
Less condensed, rather small. Mainly consists of brighter stars. Almost completely resolved.
EASY

NGC6530 (OC)

DSS
© DSS I - 20×20'
Name: NGC6530
Group: Messier 8
Type: OC
Constellation: Sgr
Coordinates: 18h04m30.00s / -24°21'00.0"
Brightness / Size: v4.6 mag / 15.0×15.0'
Part of the Lagoon Nebula (Messier 8).

8" f/6, 37x, Bortle 4, NELM 5.6+
I just observed this cluster by the way. It appeared quite loose with preferably brighter stars. A very nice view together with the Lagoon Nebula (an UHC filter might be useful).
EASY