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Information about Mars for 17 Oct. 2018

 

Midnight.

(Julian day number 2458408.41667)

Location: Zwolle Netherlands.

 

Local Information

 

Apparent top centric coordinates for the epoch of date:

 

Right ascension: 21h 5m 51.16s

Declination: -19 46' 55.9"

Constellation: Capricorn

 

Altitude: 7 59' 2"

Azimuth: 222 12' 3"

 

Rise: 16h 44m 56s

Transit: 20h 58m 17s

Set: 1h 12m 46s

 

Star atlas chart numbers:

 

Herald-Bobroff. Astro-atlas, Chart C-59

Millennium Star Atlas, Charts 1359-1360 (Vol. III)

Sky Atlas 2000.0, Chart 17

Uranometria 2000 Chart 345, Vol. 2

 

Geocentric Information

 

Apparent geocentric coordinates for the epoch of date:

 

Right ascension: 21h 5m 51.546s

Declination: -19 46' 44.54"

 

True distance: 0.6881774 AU (103 million km)

Horizontal parallax: 12.78"

 

Heliocentric Information

 

Ecliptic coordinates for the epoch of date:

 

Ecliptic longitude: 355 41' 0.6"

Ecliptic latitude: -1 29' 48.9"

Radius vector: 1.3880452 AU (208 million km)

 

Physical Information

 

Magnitude: -0.9

 

Phase: 0.868

Phase angle: 42.6

Elongation: 109.6

 

Diameter: 13.60"

 

Light time: 0h 5m 43.4s

 

Center of disk: at long 4.9, lat -17.3

 

Position angle of the North Pole: 0.8

Position angle of the bright limb: 252.1

 

The South Pole is tilted towards the Earth

The South Pole is sunlit

 

Mass: 6.4191e+023 kg (0.1074 x Earth)

Mean equatorial radius: 3397 km (0.5326 x Earth)

Maximum angular diameter: 17.9"

Minimum geocentric distance: 0.524 AU

Geometric flattening: 0.006476

Sidereal rotation period: 1d 0h 37m 23s

Mean density: 3.94 g/cm^3

Geometric albedo: 0.150

 

Physical Parameters of Mars

Equatorial radius 3,396.9 kilometres

Polar radius 3,376.1 kilometres

Geometric flattening 0.006 12

Dynamical flattening 0.005 25

Surface area 1.44(10^8) square kilometres

 

Volume 1.63(10^11) cubic kilometres

Mass 6.418 (10^23) kilograms

Mean surface gravity 372 centimetres per second squared

Mean density 3.75 grams per cubic centimetre

Mean escape velocity 5.022 kilometres per second

Martian (sidereal) day 24 h 37 min 22.663 s

Mean Martian solar day 24 h 39 min 36 s

Direction of North Pole (1980) Deneb.

Right ascension 21 h 9.2 min

Declination +52 degrees 41.6 minutes

Pole star BD 52 degrees 2880

Inclination of equator to orbit:24.936 degrees

Visual albedo 0.159

Visual mag. at mean opposition -2.01

Magnetic moment less than 2(10^21) gauss square centimetres

Central pressure 350-400 kilobars

 

 

Chicago Institute for Interplanetary travel. (CIFIT).

 

 

 

 

 

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