New Moon is 26 August, First Quarter is 2 September, Full Moon 9 September, Last Quarter 16 September and New Moon is 24 September.
C/2013 A1 Siding Spring is currently around magnitude 9, about a magnitude below predicted, and brightening.
It is high enough to be imaged from 10 pm on from the SSO scopes, and this will improve as the weeks go on.
The stand out encounter is between 28-31 August when the brightening comet meets the Small Magellanic cloud.
On 29 August the comet passes over the magnitude 6.8 globular cluster NGC 362 at around 2 am. From 28 August the comet is within T12 range of the actual SMC, although the comet is at its deepest in the cloud on the 29th around astronomical twilight.
On the 31st the comet is 37' from the heart of the amazing globular cluster 47 Tucana. This will be a great composition in T12 (and mosaics in more narrow field instruments will be nice too). These encounters all occur while the Moon is early waxing, so should be no issue with Moonlight interference.
On 13 September the brightening comet meets the magnitude 8 galaxy NGC 6744, then on 20 September it is close to the magnitude 8 globular cluster NGC 6584. On the 26th September it is within 0.8 degrees of the magnitude 8.6 globular cluster NGC 6496.
It you are willing to make mosaics, on the 14-15 the comet is within 3 degrees of mag 5.3 globular cluster NGC 6752, then on the 20th it is 5 degrees from NGC 6397, another mag 5.3 globular cluster.
As marvelous as this all is, this is the prelude to C/2013 A1 Siding Spring passing through the cluster rich tail of Scorpios and meeting with Mars in October.
The MPC one line ephemeris is
CK13A010 2014 10 25.3042 1.398732 1.000417 2.4224 300.9763 129.0433 20141209 6.0 4.0 C/2013 A1 (Siding Spring)
Chart of C/2014 E2 from Mayhill during August-September. The large rectangle is the field of view of T14. Click to embiggen.
C/2014 E2 (Jacques) has been putting on quite a nice little display. The comet is now around magnitude 6.4 with a nicely developed coma and thin but spectacular ion tail.
After it's spectacular encounters earlier in August, it finished August in a spectacular fashion too.
On August the 30th comet C/2014 E2 passes through the Elephant Trunk Nebula, IC 1369. While extensive the nebula is relatively faint, and will require some exposure juggling to bring out the comet and the nebula to their best. The colourful nebula will make deep colour imaging attractive.
The comet then passes close to some cluster rich sections of Cygnus. On September 6 it passes within T14 range of a number of complex nebula (including IC1311 and the gamma Cygnus nebual) and faint open clusters.
On September 15 the comet is one degree from the open cluster Stock 1, then on the 19th it passes through the outer reaches of the diffuse open cluster Brocchi's cluster. This will make a nice composition, probably also a mosaic.
The comet also comes relatively close to several dim clusters along the way, so imaging the comet will often have an interesting backdrop.
The MPC one line ephemeris is
CK14E020 2014 07 02.5184 0.663957 0.999145 344.0479 56.3952 156.3925 20141209 11.0 4.0 C/2014 E2 (Jacques)
C/2012 X1 LINEAR is around magnitude 10, and fading slowly. Visible in the evening to early morning sky for the SSO scopes, it moves from Grus to Indus with no interesting encounters.
CK12X010 2014 02 21.6239 1.598693 0.989755 132.0988 113.1459 44.3660 20141209 8.0 4.0 C/2012 X1 (LINEAR)
Comet C/2012 K1 PanSTARRS returns to the southern morning skies in September, but it is only high enough for the SSO scopes from September 23. It is brightening slowly towards a predicted maximum of around 6 in October.
CK12K010 2014 08 27.6553 1.054542 1.000172 203.1082 317.7384 142.4285 20141209 4.5 4.0 C/2012 K1 (PANSTARRS)
On September 39 Laetita is 0.4 degrees from the Omega Nebula, and on September 26 29 Amphrite is 0.6 degrees from the globular cluster NGC 6528.