The best of Ophiuchus.

Ophiuchus (” serpent bearer”) is below Hercules, it divides Serpens into two halves, heading for the galactic centre here. A realm of globular clusters, some 22 , most are detailed here. Some surprising other deep sky targets as well.

Globular clusters.
M9 – to the galactic centre, M10, M12, M14,M19,M62,M107, NGC 6273 (+6.7) , NGC 6304 (+8.2),NGC 6316(+8.4),NGC 6333(+7.7),NGC 6356(+8.2),NGC 6355(+9),NGC 6402 (70 variables here)(+7.6),NGC 6401(+9.4),NGC 6325(+10.3),NGC 6293(+8.2).

Open clusters.
IC 4665 (“summer Beehive”), stunning large cluster, unusually this is 15 degrees off the galactic plane.
NGC 6633 .

Planetary nebulae
NGC 6369 (“little ghost” +11.5),NGC 6572 (+8.0) the stunning very blue and bright “blue racquetball”), central star visible as a glow, NGC 6309 (+11.5) “box nebula”, NGC 6366 (+9.2).

Individual stars
Carbon star , V (SAO 159916) from +8-+9.4.
Barnard’s star, second nearest star to us, with an astounding 10.3″ proper motion per annum.

Binaries
Marfik (λ) 1.6″ separates this bright pair (SAO 121658)
Rho (ρ) a group of companions, nearest at 2.9″(SAO 184381)
Σ 2048 dusky companion at 5.6″ at 16h28.8m. -08 08′
61 Ophiuchi , bright pair at 20.6″ (SAO 122690)
69 Ophiuchi,(τ), challenging 1.5″ (SAO 142050)
Σ 2276 twins at 6.9″ (SAO 103373).

A packed constellation, the most stunning view being the very bright “blue racquetball”, a summer showpiece, under clear skies ! Nick.

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