Printer Friendly

May 2015.

The Moon, near Saturn on the 5th, is visible throughout the night. Unfortunately, its bright light hampers observing of the eta Aquariid meteor shower, which is at maximum.

Venus passes through Gemini the Twins during May, appearing as a dazzling weapon in the hand of Pollux at month's end. It is 2[degrees] from the cluster M 35 on the 9th & 10th.

The crescent Moon, New on the 18th, is visible shortly after sunset from the 19th onward as it passes through Gemini. The Moon is 6%[degrees] from Venus (-3.5-mag.) on the 21st.

The Moon passes through Cancer and Leo as it waxes towards Full Moon on June 02. On the 23rd it lies between the two star clusters Messier 44 (Praesepe) and Messier 67.

Lunar highlight

Name: Montes Caucasus

Location: Marks the boundary between Mare Serenitatis and Mare Imbrium.

Type: A substantial mountain range intersected by numerous deep valleys.

Size: Extends for some 536 km reaching a height of 3.6 km.

Best seen: Six days after New Moon and five days after Full Moon.

Notes: Readily visible in 10x binoculars. Named after the Eurasian mountain system by the 18th century German selenographer Johann Madler.

Deep-sky highlight: Hamburger Galaxy (NGC 5128)

Less than 5[degrees] north of the splendid naked-eye globular cluster omega Centauri lies this fascinating target. A small telescope reveals two elongated, nebulous patches separated by a thin, dark lane. It was first seen by Scottish astronomer James Dunlop in 1826, observing from Australia. John Herschel, at the Cape in the 1830s, saw it as "an elliptical figure, cut away in the middle by a perfectly definite straight cut." It has since been the subject of intense study and is thought to be the result of a powerful merger between a small gas-rich spiral galaxy and a giant elliptical galaxy. It lies some 12 million light years away from the Earth.

Sketched by Andre de la Porte (2009 June 18) using a 10-inch Dobsonian and an 8-mm eyepiece (150x) from Riviera, Pretoria.

Jupiter's Galilean moons

The paths of Io (1.77-day period), Europa (3.55d), Ganymede (7.16d) and Callisto (16.69d) around Jupiter (central column) throughout May.

Seeing Venus at noon: May 21 & 22

Venus (-3.5-mag.) is about 8[degrees] from the crescent Moon at noon on May 21. Finding the Moon (either with the naked eye or with binoculars) will help locate the bright planet. The Sun-Venus separation is about 45[degrees]. Remember it is hazardous to look directly at the Sun.

Movement of the planets

The positions of the inner planets (top) and outer planets (bottom) during May. The filled symbol shows the planet's position at the start of the month.

Venus near Messier 35

Venus near the Eskimo Nebula

Planet visibility

planet      eve.       morn.

Mercury    [check]       x
Venus      [check]       x
Mars      ([check])      x
Jupiter    [check]       x
Saturn     [check]    [check]
Uranus        x       [check]
Neptune       x       [check]

Sun's position

d          5 at 02:00       Con    Transit

01   +14[degrees]   50.9'   Ari   11:57:09
05            +16   02.2    Ari   11:56:44
09            +17   09.2    Ari   11:56:28
12            +17   56.5    Ari   11:56:22
15            +18   41.1    Tau   11:56:21
18            +19   22.9    Tau   11:56:26
21            +20   01.7    Tau   11:56:35
24            +20   37.5    Tau   11:56:50
27            +21   10.0    Tau   11:57:08
31            +21   48.3    Tau   11:57:39

Moon rise and set

d        Bloem.        Cape Town       Durban

     rise     set    rise     set    rise     set

01   16:28   05:19   17:06   06:07   16:15   05:08
02   17:20   06:17   17:34   07:05   17:08   06:06
03   18:16   07:14   18:29   08:04   18:03   07:04
04   19:13   08:11   19:27   09:01   19:01   08:01
05   20:13   09:07   20:27   09:32   20:00   08:32
06   21:14   10:01   21:29   10:25   21:01   09:26
07   22:15   10:29   22:31   11:16   22:02   10:18
08   23:16   11:20   23:34   12:05   23:04   11:08
09    -:-    12:09    -:-    12:29    -:-    11:34
10   00:18   12:34   01:01   13:17   00:06   12:22
11   01:19   13:23   02:04   14:04   01:08   13:11
12   02:21   14:12   03:07   14:29   02:09   14:00
13   03:22   15:03   04:09   15:18   03:11   14:26
14   04:23   15:31   05:11   16:10   04:12   15:19
15   05:24   16:25   06:13   17:03   05:13   16:13
16   06:23   17:20   07:11   17:34   06:11   17:08
17   07:19   18:17   08:10   18:32   07:08   18:05
18   08:14   19:16   09:03   19:30   08:02   19:02
19   09:05   20:13   09:29   20:28   08:31   20:00
20   09:31   21:09   10:17   21:25   09:19   20:32
21   10:17   22:04   11:03   22:21   10:06   21:28
22   11:02   22:35   11:23   23:17   10:27   22:23
23   11:23   23:30   12:07    -:-    11:11   23:18
24   12:07    -:-    12:26   00:13   11:31    -:-
25   12:28   00:25   13:09   01:09   12:16   00:13
26   13:13   01:20   13:29   02:05   13:01   01:08
27   13:35   02:16   14:15   03:02   13:23   02:04
28   14:24   03:12   15:02   03:35   14:11   03:01
29   15:15   04:10   15:29   04:34   15:02   03:34
30   16:09   05:07   16:23   05:32   15:32   04:32

d       Harare          Jo'burg

     rise     set    rise     set

01   16:26   04:34   16:26   05:12
02   17:19   05:31   17:19   06:10
03   18:15   06:28   18:14   07:07
04   19:13   07:25   19:11   08:04
05   20:11   08:21   20:11   09:00
06   21:10   09:16   21:11   09:30
07   22:10   10:10   22:12   10:23
08   23:08   11:03   23:13   11:14
09    -:-    11:31    -:-    12:04
10   00:07   12:22   00:14   12:29
11   01:06   13:14   01:14   13:19
12   02:05   14:06   02:15   14:09
13   03:04   14:35   03:16   15:01
14   04:02   15:29   04:16   15:29
15   05:01   16:24   05:16   16:23
16   05:35   17:20   06:15   17:19
17   06:32   18:17   07:11   18:16
18   07:27   19:13   08:07   19:14
19   08:20   20:10   08:35   20:10
20   09:11   21:04   09:24   21:06
21   09:35   21:34   10:11   22:01
22   10:23   22:26   10:33   22:31
23   11:10   23:19   11:18   23:26
24   11:32    -:-    12:03    -:-
25   12:19   00:11   12:23   00:20
26   13:06   01:04   13:10   01:14
27   13:31   01:34   13:32   02:09
28   14:21   02:28   14:22   03:05
29   15:14   03:24   15:13   04:02
30   16:08   04:20   16:08   05:00

For Port Elizabeth subtract 28m from Cape Town;
for Bulawayo add 9m to Harare.

Sun's position

d          5 at 02:00       Con   Transit

01   +21[degrees]   56.9'   Tau   11:57:48
03            +22   13.0    Tau   11:58:07
05            +22   27.5    Tau   11:58:27
09            +22   51.9    Tau   11:59:12
12            +23   06.0    Tau   11:59:48
15            +23   16.4    Tau   12:00:26
18            +23   23.1    Tau   12:01:05
21            +23   26.1    Tau   12:01:45
24            +23   25.3    Gem   12:02:24
27            +23   20.9    Gem   12:03:02
30            +23   12.8    Gem   12:03:38
COPYRIGHT 2015 Astronomical Society of Southern Africa
No portion of this article can be reproduced without the express written permission from the copyright holder.
Copyright 2015 Gale, Cengage Learning. All rights reserved.

Article Details
Printer friendly Cite/link Email Feedback
Publication:Sky Guide Africa South
Article Type:Calendar
Geographic Code:1USA
Date:Jan 1, 2015
Words:1349
Previous Article:April 2015.
Next Article:Star charts for autumn.
Topics:

Terms of use | Privacy policy | Copyright © 2019 Farlex, Inc. | Feedback | For webmasters