These are the major astronomical events of the month January 2011.
L a
January 4: New Moon (09e05 hours local time)
Earth-Moon distance: 167 km 389 ˙
January 12: First Quarter Moon (11e33 hours local time)
Earth-Moon distance: 447 km 401 ˙
January 19: Full Moon (21e23 hours local time)
Earth-Moon distance: 817 km 361 ˙
26 January : last quarter of the Moon (13e00 hours local time)
Earth-Moon distance: 271 km 376 ˙
meteor showers
January 3 to 4 : Quadrantids (see: http://it.wikipedia.org/wiki/Quadrantidi )
parent body: the asteroid 2003 EH1, which probably corresponds to the comet C/1490 Y1.
Date activities: from '1 to 5 January. Maximum frequency over 60 meteors per hour, with short peaks up to 100 meteors per hour.
lunar illumination: non-existent, since the nights are interested in the new Moon. It should however be noted that the radiation, which is located in the constellation Bootes the border with Hercules and the Dragon, rises after midnight.
Planets
Mercury is visible at dawn for the entire month, fairly high above the horizon, and then with good visibility. On January 9 is to maximum western elongation (23 ° angular distance from the Sun), but the period of visibility extends to the second decade of the month.
Venus shines at magnitude -4.5 in the early hours before dawn. L ' January 8 is the maximum western elongation (47 ° angular distance from the Sun) and precedes the rising star of our good 3 hours and 42 minutes. Always spectacular!
Mars is undetectable for the entire month because of the close proximity with the Sun angle
Jupiter is always visible in the constellation of Pisces prima parte della notte. Si trova già oltre il meridiano locale quando il cielo si fa scuro e la sua magnitudine inizia a diminuire, anche se rimane per tutto il mese sopra -2.
Saturno è il protagonista della seconda parte della notte nella costellazione della Vergine . Notte dopo notte si sposta verso Spica fino al 27 gennaio, notte in cui è stazionario, prima di iniziare il moto retrogrado; segno che l’opposizione non è lontana (4 aprile). A fine mese sorge poco prima delle 23.
Urano è rintracciabile per tutto il mese nelle immediate vicinanze di Giove (appena sopra e verso ovest rispetto al gigante del Sistema Solare), da cui non s allontana mai più 4 °.
Neptune is always traceable less than 4 degrees north-east of the star Deneb Algiedi, the tail of Capricorn, virtually immobile. Its visibility is reduced progressively and disappears later this month in light of the sunset.
Other phenomena
January 2 : conjunction Moon (thin waxing crescent to 5%) with Mercury, south-southeast at dawn.
January 3 : Jupiter in close conjunction with Uranus (angular distance of just over 31.5 minutes of arc)
January 3 : Earth at perihelion, or the point closer to the Sun at a distance of 0.983 Astronomical Units, equivalent to just over 147 million kilometers.
January 4 : Partial eclipse of sun visible from our resort. As you can see from the link , the strip of shadow on the terminator runs almost light-dark. From Romagna contact between the Moon and the Sun comes shortly before 8 am with both objects still low on the horizon, the maximum coverage of the solar disk around the 9e15 and end the event at around 10e45.
January 10: Moon-Jupiter conjunction. A crescent moon rising (phase 33%) finds himself 6.5 ° above the gas giant and the two objects will make company fino al loro tramonto.
25 gennaio : congiunzione larga Luna-Saturno. Una falce lunare decrescente (fase al 66%) si viene a trovare 8° sotto al pianeta inanellato e i due oggetti si fanno compagnia per tutta la seconda parte della notte.
30 gennaio : congiunzione Luna-Venere: Una sottile falce lunare decrescente (fase al 14%) si viene a trovare 4° sotto Venere che brilla con magnitudine -4,3.
Venerdì 14 gennaio – SerAntares
Liceo Scientifico di Lugo “G. R. Curbastro
"Top 5 discoveries of the Space Telescope"
limitations (see poster)
By Daniela, Angelo
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