First Quarter is 7 April, Full Moon 15 April, Last Quarter 22 April and New Moon is 29 April.
Comet C/ 2012 K1 PanSTARRS it is currently crossing the Corona Borealis/Bootes border, and will spend most of April crossing Bootes.
C/2012 K1 PanSTARRS is currently around magnitude 10.4, around a full magnitude dimmer than predicted. Nonetheless the comet has a nicely developed coma and tail, and even hints of an ion tail.
It is high enough to be imaged after astronomical twilight from Northern scopes, and is near the zenith early in the morning, which will be good for imaging. The comet passes a number of small galaxies, so wide field compositions with T14 will be very rewarding.
On the 13th the comet is close to magnitude 11.3 galaxy NGC 5899, on the 23rd it is within the T5 field of view of galaxy NGC 5633, on the 27th it is within T14 distance of magnitude 11.3 galaxy NGC 5377.
This is capped off on the 30th to the 2nd of may, when the brightening comet is within the T14 FOV of the Whirlpool galaxy.
Chart of C/2014 E2 as seen from SSO, Southern Hemisphere. The Large rectangles are the field of view of T12, the small of T9. (click to embiggen).
C/2014 E2 (Jacques) is brightening and is currently around magnitude 10, a full 3 magnitudes above predicted. It appears to be a long period comet, rather than a fresh Oort cloud arrival, so it may brighten substantially.
The comet is still best seen from the SSO scopes, although the northern scopes can get a good look at it. Currently tracking along the Pyxis/Hydra border, it ends the month in Monoceros. It is higest, near the zenith from the SSO scopes, around astronomical twilight, and is visible fro a fair chunk of the night.
As with C/2012 K1, C/2014 E2 has several encounters with open clusters and galaxies, many of which repay widefield imaging.
On April 8 there is a great widefield shot with several galaxies in T12 range of the comet 10.3 Mag NGC 2784, 10.3 NGC 2035 and NGC 2815, and the Helix Nebula if you can fit it in. On the 14th the comet is close to the magnitude 10 open cluster Ru62. On the 20th the comet is within T12 range of magnitude 6.5 open cluster NGC 2539, and on the 22, it is close to NCG 2506, and magnitude 7.6 open cluster, a T12 shot will also include magnitude 11.6 NGC 2525.
C/2012 X1 LINEAR is still bright, around at magnitude 8.3 it is the brightest of our comets this month. It is slowly fading as it climbs higher in the morning sky.
It is seen in the early morning in Aquarius, with the SSO scopes having the best views before astronomical twilight. Unfortunately there are no really interesting encounters with this comet, athough it does comet within T12 distance of asteroid 12 Victoria on the 23rd and 24th.
Comet C/2013 R1 Lovejoy is currently around magnitude 11. Passing from Scutum into Serpens as it fades, it passes within T12 distance of the magnitude 8 open cluster NGC 6625. It is visible from both northern and southern scopes, although best from the SSO.
Comet 290P/2013 N1 (Jager) is curently magnitude 12.8, it is currently in Gemini, best seen just after astronomical twilight, and for about two hours before it passes below the telescopes travel.
Comet 134P will be around magnitude 13 in April as it slowly fades. In Virgo, it is well psoitioned for imaging most of the night, although it never gets very high. It is best in the northern scopes, althoug observable from SSO as well. It has no ineresting encounters.
Vesta and Ceres come to opposition on the 13th and 15th respectively. They have no really interesting encounters, but both fit into one T12 frame, and would make an interesting animation.