Welcome to MountainViews
If you want to use the website often please enrol (quick and free) at top right.

General Whatever you want to say that doesn't fit under the comments about mountains or another forum.
Sort by >

More controls

<< Prev page 1 .. 171 172 173 174 175 176 .. 367 Next page >>
Post details Post   (Expand pics)
No doubt the hills.. by maclimber   (Show all posts)
Hi Cra, thanks for.. by slemish   (Show all posts)
Hello Slemish wh.. by Bleck Cra   (Show all posts)
On Saturday 23rd J.. by wicklore   (Show all posts)
I am delighted to .. by Bleck Cra   (Show all posts)
Anyone planning on.. by Conor74   (Show all posts)
A small, if perfec.. by Bleck Cra   (Show all posts)
mcrtchly
2011-07-08 23:18:53
Distant views
An approximate distance to Earth's horizon can be calculated by the formula: Distance = 3.86 SQRT (Height of observer). For a 800m peak this gives a maximum view to the horizon of about 109Km. However, you also need to take account of the height of the 'target'. The calculation above gives the range of the view to sea level at the horizon. You can also use the formula to take account of the height of the target and add the observer and target ranges together. Thus an observer on top of a 800m mountain would just see the top of another 800m mountain which is 109km+109km = 218km away. Of course the theoretical viewing range is unlikely to be met due to atmospheric conditions.
Thanks very much S.. by hbowman1   (Show all posts)
hbowman1 the dista.. by slemish   (Show all posts)


RECENT CONTRIBUTIONS 1 2 3 .. 15 Next page >>
Summit Comment
Cupidstown Hill: Enhance this with a visit to Oughterard
Bunsen7 12 hours ago.
Yes, perhaps this is not a very noteworthy hill. However, if you have accessed Cupidstown Hill from the N7 and are returning that way, you can easily improve your visit to the area with a short de...

  
Summit Comment
Knockowen: October 2016
davsheen 23 hours ago.
View of the impressive Glanrastel valley from the side of Knockowen

  
Track
Near South Cork (Ireland)
sean_debarra a day ago.
walk, Len: 0.8km, Climb: 15m, Area: South Cork (Ireland)

Summit Comment
Cloghernagh: Picture
davsheen a day ago.
Cloghernagh Walk Nov 2016

  
Track
Route to Claggan NE Top
Onzy 2 days ago.
walk, Len: 8.0km, Climb: 2m, Area: Claggan Mountain NE Top, North Mayo (Ireland...

  
Summit Summary
Robber's Pass Hill: Minor heathery lump. Overcivilised and underwhelming.
Collaborative entry Last edit by: simon3 6 days ago.
This oddly named hill is more a very minor heathery bump incorporated into the system of tracks laid out by the Wicklow Mountains National Park. It can be reached from any of the western car-parks...

Summit Comment
Farbreague: from Arderin
ewen a week ago.
Walked to Farbreague from Arderin. There is a track that some kind soul has marked with sticks and ribbon. When I say track, it is really a worn down trough in the bog.The multicoloured pipe at th...

  
Track
Slievemore Circuit
Onzy 2 days ago.
Route over Slievemore descending over rough grouns to the SE for variety. walk, Len: 8.1km, Climb: 639m, Area: Slievemore, Achill/Corraun (Ireland) Sliev...

  
Summit Comment
Tonelagee: Fore!!!
ewen a week ago.
Did from the Wicklow gap car park following track 2378.This starts immediately opposite the top entrance to the car park next to the main road. 5 days before there had been snow but now the path w...

Summit Comment
Brandon Hill: Grand on Brandon!
MountainBoy a week ago.
Me and my Dad climbed this from the farm track off the Graiguenamanagh-Instioge road on 26/11/16. Right after we got out of the car, we were faced with the dilemma of whether to go straight ahead ...

  
Track
Onzy 2 days ago.

  
Summit Comment
Croaghmoyle: Easy walk up to great views
Fergal Meath a week ago.
Low lying cloud/mist/fog discouraged me from putting the effort into going up Nephin today. On the way home I parked at the start of the Croaghmoyle service road and followed it past a wind turbin...


RECENT CONTRIBUTIONS 1 2 3 .. 15 Next page >>