Astronomical Diary
MOON PHASES
fullmoonjpg lastquarterjpg newmoonjpg firstquarter.jpg
Full Moon Last Quarter New Moon First Quarter
July 5
12:44 PM
July 13
7:29 AM
July 21
1:33 AM
July 27
8:33 PM
SPACE WEATHER
Current Condition X-ray Solar Flares
SOLAR WIND

Speed: 346.1 km/sec
Density: 8.3 protons/cm3
More Data: ACE, DSCOVR

Explanation | More Data
Updated: June 30 at 0815 UT

" ***The sun is blank -- no sunspots" .

Credit: Solar Dynamics Observatory(SDO)/Helioseismic
and Magnetic Imager (HMI).
Daily Sun: 30 June 2020
DSun
6-hr max: A2 0257 UT June30
24-hr: A4 0056 UT June30
Explanation | More Data
Updated: June 30 at 0820 UT
Time (PST) of rise and set of some planets at 10-day interval
DATE MERCURY VENUS MARS JUPITER SATURN
Rise Set Rise Set Rise Set Rise Set Rise Set
July 9 4:50 AM 5:32 PM 2:56 AM 3:37 PM 11:12 PM *11:17 AM 6:46 PM *6:05 AM 7:21 PM *6:34 AM
July 19 4:15 AM 5:03 PM 2:39 AM 3:23 PM 10:51 PM *11:00 AM 6:01 PM *5:20 AM 6:29 PM *5:51 AM
July 29 4:18 AM 5:12 PM 2:30 AM 5:15 PM 10:29 PM *10:41 AM 5:17 PM *4:35 AM 5:47 PM *5:09 AM

* = Following day
Astronomical Events July 2020

Meteor Shower

The Southern Delta Aquarid meteor shower will be best observed from July 28 to 31 and is estimated to peak before midnight and onwards on July 29/30. These are part of a complex of radiant in Aquarius, Capricornus and Piscis Austrinus, all of which combine with sporadic and early Perseid activity to provide a nice display of meteors in the last week of the month. The stream normally produces about 5-10 meteors/hour with overall activity of about 15 meteors/hour under good sky conditions. Unfortunately, the bright Moon will interfere the activity. Figures 2 & 2a show the position of the constellation Aquarius-the Water Bearer, where the radiant will originate.

Figure 2
Figure 2
Figure 2a
Figure 2a
Stars and Constellations

Stargazers will be having a nice time watching the night sky with the famous Summer Triangle of the stars Vega, Deneb and Altair of the constellations Lyra, Aquila and Cygnus, respectively, being well placed in the eastern horizon as shown in Figures 1 & 1a. Also shown in Figure 1a are well known constellations like Ophiuchus -the Serpent Holder, Scorpius –the Scorpion and Sagittarius the Archer.

Figure1. View of the eastern sky on 01 July 2020 at 9:00 PM
Figure 1
Fig1a
Figure 1a

Planets Whereabout

The Planet whereabouts…
From July 1 to July 31 at 4:00 A.M., a grand view of planets will be observed from the eastern towards the western horizon. Jupiter, Saturn, Neptune, Mars, Uranus and Venus will become very good targets for astrophotography as shown in Figures 4 to 6.

Figure4
Figure 4
Fig5
Figure 5
Fig6
Figure 6


Figure 7 shows how to compare apparent magnitudes of celestial bodies such as planets and stars.

Figure7

JULY 2020
DATE EVENT TIME (PhST)
1 Mercury inferior conjunction 11:00 AM
4 Earth at aphelion (1.0167 AU) 9:00 PM
5 Penumbral Lunar Eclipse
(not visible in the Philippines)
1:00 PM
11 Aldebaran 1° N of Venus 8:00 PM
12 Mars 2.2° N of Moon 4:00 AM
13 Moon at apogee (farthest distance to Earth = 404,200 km) 3:00 AM
14 Jupiter at opposition 3:00 PM
21 Saturn at opposition 6:00 AM
25 Moon at perigee (nearest distance to Earth = 368,400 km) 1:00 PM

ERRATA FOR THE ALMANAC FOR GEODETIC ENGINEERS 2020


Regarding the publication on page 2 of the ALMANAC FOR GEODETIC ENGINEERS 2020, which contains the data for the EPHEMERIS OF THE SUN, it was verified that the February 29, 2020 date is missing but the data for the particular date is the data printed as March 1, 2020. The data printed from April 3 to December 31 are all correct.

Kindly refer to the image/link below for the data errata on the Ephemeris of the Sun 2020.
Errata2020
Errata of AGE 2020, page 2
(Errata of AGE 2020 pdf file)