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2. Phase curve (astronomy) - Wikipedia

   en.wikipedia.org/wiki/Phase_curve_(astronomy)

   Because the orbit of Mars is considerably eccentric its brightness at opposition can range from magnitude −3.0 to −1.4. [14] The minimum brightness is about magnitude +1.6 [14] when Mars is on the opposite site of the Sun from the Earth. Rotational variations can elevate or suppress the brightness of Mars by 5% and global dust storms can ...

3. Astronomy on Mars - Wikipedia

   en.wikipedia.org/wiki/Astronomy_on_Mars

   Download as PDF; Printable version; ... As seen from Mars, the Earth is an inner planet like Venus (a "morning star" or "evening star"). ... The maximum brightness of ...

4. Phase angle (astronomy) - Wikipedia

   en.wikipedia.org/wiki/Phase_angle_(astronomy)

   For some objects, such as the Moon (see lunar phases), Venus and Mercury the phase angle (as seen from the Earth) covers the full 0–180° range. The superior planets cover shorter ranges. For example, for Mars the maximum phase angle is about 45°. For Jupiter, the maximum is 11.1° and for Saturn 6°. [1]

5. Orders of magnitude (illuminance) - Wikipedia

   en.wikipedia.org/wiki/Orders_of_magnitude...

   Download QR code; Print/export Download as PDF; Printable version; In other projects Wikidata item; Appearance. move to sidebar hide ... Venus at brightest [1]

6. Phases of Venus - Wikipedia

   en.wikipedia.org/wiki/Phases_of_Venus

   The orbit of Venus is 224.7 Earth days (7.4 avg. Earth months [30.4 days]). The phases of Venus result from the planet's orbit around the Sun inside the Earth's orbit giving the telescopic observer a sequence of progressive lighting similar in appearance to the Moon's phases. It presents a full image when it is on the opposite side of the Sun.

7. Venus, Mars, Jupiter and Saturn to align in cosmic ... - AOL

   www.aol.com/venus-mars-jupiter-saturn-align...

   Venus, Mars, Jupiter and Saturn will line up in the sky this week and could stay visible to the naked eye for a number of weeks. Skygazers will be treated to the sight from Wednesday all the way ...

8. Solar luminosity - Wikipedia

   en.wikipedia.org/wiki/Solar_luminosity

   Evolution of the solar luminosity, radius and effective temperature compared to the present-day Sun. After Ribas (2010) [1] The solar luminosity (L ☉) is a unit of radiant flux (power emitted in the form of photons) conventionally used by astronomers to measure the luminosity of stars, galaxies and other celestial objects in terms of the output of the Sun.

9. Syzygy (astronomy) - Wikipedia

   en.wikipedia.org/wiki/Syzygy_(astronomy)

   Apparent planetary alignment involving Mercury, Venus, Mars, and Jupiter; the Moon is also shown, as the brightest object. Because the orbits of all the planets in the Solar System (as well as the Moon) are inclined by only a few degrees, they always appear very near the ecliptic in our sky.