Star calendar June 2017

Star calendar June 2017

1 Jun     The first-quarter moon lies between magnitude 1.4 Regulus, 2 fist-widths to the right, and magnitude -2.2 Jupiter, 2½ fist-widths to the lower left.

2 Jun     Tonight Jupiter is 1 fist-width to the moon’s lower left.

3 Jun     The moon passes less than 1 finger-width to Jupiter’s upper left tonight. The bright star 1 fist-width to the moon’s lower left is magnitude 1.0 Spica.

4 Jun     Spica is 3 finger-widths to the moon’s lower right this evening. Jupiter is 1 fist-width to the moon’s upper right.

8 Jun     At midnight, magnitude 0.96 Antares is less than 1 fist-width to the moon’s lower right. Magnitude 0.0 Saturn is about the same distance to the moon’s lower left. The moon is at apogee, 63.71 Earth-radii (406,000 kilometers) away.

9 Jun     Saturn is 1 finger-width to the right of the full moon tonight.

10 Jun    Saturn is 2 finger-widths to the moon’s lower right, low in the west before first light.

12 Jun    The bright star nearly 3 fist-widths above the moon this morning is magnitude 0.93 Altair, which is about 17 light years away. The equation of time is 0.

14 Jun    Today marks the year’s earliest sunrise  at latitude 40 degrees north.

15 Jun    At opposition, Saturn is opposite the sun in our sky.

17 Jun    The last-quarter moon is low in the southeast at sunrise.

20 Jun    The waning crescent moon is low in the east before dawn with magnitude -4.2 Venus 3 finger-widths to the left or lower left.

21 Jun    Marking the summer solstice, the sun reaches its northernmost declination today.

23 Jun    The moon is at perigee, 56.12 Earth-radii (358,000 kilometers) away. Perigee occurs only 15.7 hours before the new moon, so check your tide tables before heading out.

27 Jun    Magnitude 1.4 Regulus is less than ½ finger-width to the right of the waxing crescent moon at dusk. Today marks the latest sunset of the year at latitude 40 degrees north.

30 Jun    At dusk, magnitude -2.0 Jupiter is less than 2 finger-widths to the first-quarter moon’s left or lower left. Spica is another fist-width beyond Jupiter.

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