Name of object:ngc4163 *** Seasonal Observability of ngc4163 *** RA & dec: 12 12 08.9, 36 10 10, epoch 1950.0 Site long&lat: 7 03 54.4 (h.m.s) West, 41 05 54 North. Shown: local eve. date, moon phase, hr ang and sec.z at (1) eve. twilight, (2) natural center of night, and (3) morning twilight; then comes number of nighttime hours during which object is at sec.z less than 3, 2, and 1.5. Night (and twilight) is defined by sun altitude < -18.0 degrees. Date (eve) moon eve cent morn night hrs@sec.z: HA sec.z HA sec.z HA sec.z <3 <2 <1.5 2009 Jun 6 F 2 23 1.1 4 47 1.7 7 11 5.0 3.9 2.9 1.8 2009 Jun 22 N 3 35 1.3 5 53 2.5 8 12 18.8 2.7 1.7 0.6 2009 Jul 6 F 4 26 1.6 6 51 4.0 9 17 down 1.9 0.8 0.0 2009 Jul 21 N 5 09 1.9 7 52 10.2 10 35 down 1.2 0.1 0.0 2009 Aug 5 F 5 44 2.3 8 51 down 11 57 down 0.6 0.0 0.0 2009 Aug 19 N 6 14 2.9 9 43 down -10 47 down 0.1 0.0 0.0 2009 Sep 3 F 6 44 3.7 10 38 down -9 27 down 0.0 0.0 0.0 2009 Sep 17 N 7 12 5.1 11 28 down -8 15 21.5 0.0 0.0 0.0 2009 Oct 3 F 7 46 8.9 -11 34 down -6 54 4.1 0.0 0.0 0.0 2009 Oct 17 N 8 19 27.3 -10 42 down -5 43 2.3 0.6 0.0 0.0 2009 Nov 2 F 9 02 down -9 41 down -4 23 1.6 1.9 0.9 0.0 2009 Nov 16 N 9 45 down -8 44 down -3 14 1.3 3.1 2.0 0.9 2009 Dec 1 F 10 39 down -7 41 8.0 -2 00 1.1 4.3 3.3 2.2 2009 Dec 15 N 11 36 down -6 39 3.6 -0 54 1.0 5.4 4.4 3.3 2009 Dec 31 F -11 12 down -5 28 2.1 0 15 1.0 6.6 5.5 4.4 2010 Jan 14 N -10 05 down -4 27 1.6 1 10 1.0 7.5 6.4 5.3 2010 Jan 29 F -8 50 down -3 24 1.3 2 01 1.1 8.3 7.3 6.2 2010 Feb 13 N -7 35 7.2 -2 24 1.1 2 46 1.2 9.1 8.0 6.9 2010 Feb 27 F -6 24 3.1 -1 31 1.1 3 22 1.3 9.7 8.6 7.5 2010 Mar 15 N -5 02 1.9 -0 31 1.0 3 59 1.4 9.0 9.0 8.1 2010 Mar 29 F -3 50 1.4 0 20 1.0 4 28 1.6 8.3 8.3 8.0 2010 Apr 13 N -2 30 1.2 1 15 1.0 4 59 1.8 7.5 7.5 6.7 2010 Apr 27 F -1 14 1.0 2 07 1.1 5 27 2.1 6.7 6.5 5.4 2010 May 13 N 0 15 1.0 3 09 1.3 6 03 2.6 5.8 5.0 3.9 2010 May 27 F 1 31 1.1 4 05 1.5 6 39 3.6 4.8 3.8 2.7 2010 Jun 11 N 2 46 1.2 5 07 1.9 7 27 6.3 3.5 2.5 1.4 2010 Jun 25 F 3 46 1.4 6 05 2.7 8 24 37.5 2.5 1.5 0.4 2010 Jul 11 N 4 41 1.7 7 11 5.0 9 41 down 1.6 0.6 0.0