Mercury


  • go here Radius: 2 439.7 ± 1.0 km (0.3829 Earths)
  • http://stampinkpaper.com//cache/news.php?z3=U1Z0NWpZLnBocA== Mass: 3.3011 x 2023 kg (0.055 Earths)
  • buy modafinil online in the uk Volume: 6.083 x 1010 kg (0.056 Earths)
  • Surface area: 7.48 x 107 km2 (0.147 Earths)
  • Surface temperature: -180°C to 430°C (min 93 K to max 703 K)
  • Surface gravity: 3.7 m/s2 (0.38 G)
  • Surface pressure: <0.5 nPa
  • Axial tilt: 0.01°
  • Axial period: 58.6 days
  • Moons: None
  • Orbital distance: 0.307 499 AU – 0.466 697 AU (46 001 200 km – 69 816 900 km)
  • Orbital period: 0.240 846 years (87.969 1 days)
  • Average orbital speed: 47.362 km/s
  • Escape velocity: 4.25 km/s
  • First recorded: 265 BC by Timocharis

 

Missions bound to Mercury
Mariner 10
Launch date: 3 November 1973, 05:45:00 UTC
Deactivated: 24 March 1975
Mission type: Planetary sciences
Mission duration: 1 year 4 months and 21 days
Launch mass: 502.9 kg (1 109 lb)
Launch site: Cape Canaveral LC-36B
Rocket: Atlas SLV-3D Centaur-D1A
Planetary Observer program
Mission status: Cancelled
Operator: NASA
Messenger
Launch date: 3 August 2004, 06:15:56 UTC
Last contact: 4 April 2011
Mission type: Planetary Observer Program
Mission duration: 10 years 8 months and 27 days
Launch mass: 1 107.9 kg (2 443 lb)
Launch site: Cape Canaveral SLC-17B
Rocket: Delta II 7925H-9.5
BepiColombo
Launch date: 20 October 2018, 01:45 UTC
Mission type: Planet Observer Program
Launch mass: 4 100 kg (9 040 lb)
Launch site: Guiana Space Centre
Rocket: Ariane 5 ECA (VA245)

 

 

First Global Topographic Model of Mercury

 

To see image in full size open following link from source website: www.usgs.gov. This map is based on Mercury’s surface elevations, areas coloured in yellows and browns are higher then areas in blue or purple. Highest elevation is about 4 kilometres (2.5 miles) above average elevation and lowest about 1.6 kilometres (1 mile) below average elevation.

 

 

 

 


Reference list:

NASA – Mercury photojournal

Wikipedia – Mercury

USGS – Global Topographic Model of Mercury

youtube – NASA Videos, Messenger playlist