In Manx skies... July 2018 ~ compiled by Dave Storey |
||
New First Quarter Last Quarter |
Note: All times are
Universal Time (UT) There is a partial solar eclipse on 13th . Non of the eclipse is visible from the Isle of Man. Click here for details.
|
|
Solar activity is low with solar cycle 24 now in force. WARNING: NEVER DIRECTLY OBSERVE THE SUN WITH YOUR NAKED EYES AND/OR OPTICAL INSTRUMENTATION: YOU WILL BE BLINDED! Carrington's Solar Rotation number 2206 starts on the 9th at 20h38m16s. |
||
|
||
|
||
|
||
|
||
Will be low down in the south
western skies after sunset, shining at magnitude -2.3 to -2.1. It
resides in the constellation Libra throughout the month and moving
in a retrograde direction (east to west) until the 11th
when it momentarily becomes
stationary before resuming a prograde (west to east) direction.
The Moon (waxing phase, 61% illuminated) will be found just over
4° upper right of Jupiter on the evening of the 20th
. To help you identify the moons at any particular time, Sky and Telescope have a Java tool that will plot the moon positions. Click Here. |
||
Can be found very low down in the southern skies during the month, residing in the constellation Sagittarius. It fades very slightly from magnitude 0.0 to +0.2 during the month. The rings are well presented towards Earth at a positive angle of 26° and should be a nice telescopic sight, although the image being degraded by the planets low altitude. Titan (magnitude +8.6) will be seen west of the planet on 7th ,8th ,9th ,10th ,23rd ,24th ,25th and 26th . It will be east of the planet on 1st ,2nd ,15th ,16th ,17th and 18th . |
||
Pluto |
Is at opposition on the 12th in Sagittarius shining at a very dim +14.4, so a large telescope will be required to see the planet. The dwarf planet makes a close approach (0.4 arc minute) to the star 50 Sagittarii on the 4th and should be used as a good opportunity to track down the planet. Pluto like the rest of the planets will be low down as seen from our shores. Use the charts below to locate the planet buy star hoping through binoculars and then a telescope. The map shown is a wide angle view of the constellation Sagittarius. The red box is the zoomed in area as shown in medium star field chart link below. And another red box within the medium star field chart will get even closer when a telescope will be required to locate Pluto. Click on narrow field star chart link for the telescopic chart. |
|
alpha-Cygnids are active during July and August with two peaks; one in July and the other in August. The peak in July occurs on the 21st July when 5 meteors per hour (ZHR) will be seen. Radiant is at RA. 21h00m Dec. +48° Capricornids are active during July and August with three peaks this month. The dates being 9th, 16th and 26th . Like the aplha-Cygnids, the showers are weak with only 5 meteors per hour (ZHR). These meteors can display yellow-blue colours. Radiant is at RA. 20h44m Dec. -15° delta-Aquarids are active from 15th July to 20th August. Two peaks occur, one on July 29th and another in August. The peak this month will be 20 meteors per hour (ZHR) and situated at radiant RA. 22h36m Dec. -17°. These meteors are usually faint. Alpha-Capricornids are active from July 15th to 20th August. Peak activity occurring on the nights 2nd - 3rd August. Radiant is at RA. 20h36m Dec. -10° iota-Aquarids can be seen during July and August with a peak due in August. This is another weak shower with only 8 meteors per hour (ZHR) at peak. Radiant is at RA. 22h10m Dec. -15° The Perseids become active during this month and can be seen from the 23rd. Peak activity occurring in August. This shower produces some bright, fast meteors. |
||
Date Time ZC# SAO# Magnitude. P.A. Type of event. Notes
2nd 01.48:56 3171 164560 +3.7 184° RD gamma
Cap. D*
For
very detailed list of occultations visible this month, click
here. Data from Occult Software) ZC
= Zodiacal Catalogue. Type of Event DD = disappearance at dark
limb, RD = Reappearance at dark limb. RB = Reappearance on bright
limb. PA = Position Angle around limb of the Moon, where 0 degrees
is north, 90 degrees is east, 180 degrees is south and 270 degrees
is west. |
||
Noctilucent clouds |
|
|
This star drops from magnitude +2.1 to +3.4 in about 5 hours. There are no suitable events visible this month. Click here for a star chart for Algol. |
||
Comet |
There are no predicted bright comets this month. |
|
The international Space Station crosses the Manx skies on a regular basis. For the latest information on when the ISS is due to pass across the sky over the next ten days, visit the link below. |
||
|
Bibliography for Manx Night Skies The
Handbook of the British Astronomical Association 2018. BAA.
2017 Planetary data derived from
Guide 9
Software. |