| Observation |
Distance |
Observer Height |
Target Height |
Globe Predicted Horizon Distance |
Globe Predicted Hidden by Horizon |
Relevant Axis Mismatch
|
| Barcelona to Mallorca |
112 miles (180 km) |
703 feet (214 m) |
4,305 feet (1,312 m) |
32.4 miles (52.1 km) |
4,218 feet (1,286 m) |
Y-axis
|
| Small Pond Horizon Test |
600 feet (180 m) |
1.5 inches (38 mm) |
8 inches (200 mm) |
2,286 miles (3,679 km) |
21 millimetres (0.83 in) |
Y-axis
|
| Mallorca to Sant Jeroni |
212 kilometres (132 mi) |
1,002 metres (3,287 ft) |
1,236 metres (4,055 ft) |
70.2 kilometres (43.6 mi) |
769 metres (2,523 ft) |
Y-axis & Z-axis
|
| Charra SA to Lounds Island |
29.6 kilometres (18.4 mi) |
7.5 metres (25 ft) |
12 metres (39 ft) |
10 kilometres (6.2 mi) |
30 metres (98 ft) |
Y-axis & Z-axis
|
| Alma NB to Isle Haute NS |
24 miles (39 km) |
84 feet (26 m) |
30 feet (9.1 m) |
11.2 miles (18.0 km) |
108 feet (33 m) |
Y-axis & Z-axis
|
| Lake McConaughey to Lake McConaughey Dam |
14 miles (23 km) |
8 feet (2.4 m) |
24 feet (7.3 m) |
3.4 miles (5.5 km) |
74 feet (23 m) |
Y-axis & Z-axis
|
| Southern Ocean Sea level to Mountains at 300 miles |
300 miles (480 km) |
Estimated 75 feet (23 m) |
27,000 feet (8,200 m) |
10.6 miles (17.1 km) |
55,971.6 feet (17,060.1 m) |
Y-axis
|
| Cape Bolton NK to Mount Chōkai Jp |
897 kilometres (557 mi) |
10 metres (33 ft) |
7,130 metres (23,390 ft) |
11.2 kilometres (7.0 mi) |
62,062 metres (203,615 ft) |
Y-axis
|
| Mallorca to Tossal de la Muga |
307 kilometres (191 mi) |
1,002 metres (3,287 ft) |
2,859 metres (9,380 ft) |
70.2 kilometres (43.6 mi) |
2,955 metres (9,695 ft) |
Y-axis
|
| Finestrelles Pyrenees to Pic Gaspard |
443 kilometres (275 mi) |
2,826 metres (9,272 ft) |
3,883 metres (12,740 ft) |
188.3 kilometres (117.0 mi) |
5,096 metres (16,719 ft) |
Y-axis & Z-axis
|
| Penyagolosa to Puig Major |
272 kilometres (169 mi) |
1,813 metres (5,948 ft) |
1,436 metres (4,711 ft) |
94.4 kilometres (58.7 mi) |
1,130 metres (3,710 ft) |
Y-axis
|
| Canigó Pyrenees to Barre des Écrins Alps |
412 kilometres (256 mi) |
2,785 metres (9,137 ft) |
4,102 metres (13,458 ft) |
189.7 kilometres (117.9 mi) |
3,882 metres (12,736 ft) |
Y-axis & Z-axis
|
| Black Swan |
Greater than 9.34 miles (15.03 km) |
1 foot (0.30 m) |
Not Applicable |
1.2 miles (1.9 km) |
Not Applicable |
Z-axis ONLY!
|
| Dover From Calais |
24 miles (39 km) |
Estimated 12 feet (3.7 m) |
350 feet (110 m) |
4.2 miles (6.8 km) |
260 feet (79 m) |
Y-axis & Z-axis
|
| Chicago Skyline |
53 miles (85 km) |
Estimate MAX 223 feet (68 m) |
1,453 feet (443 m) |
8.2 miles (13.2 km) |
804 feet (245 m) |
Y-axis & Z-axis
|
| Milwaukee Wisconsin From Muskeegan Michigan |
80 miles (130 km) |
Estimated 50 feet (15 m) |
650 feet (200 m) |
8.6 miles (13.8 km) |
3,394 feet (1,034 m) |
Y-axis
|
| Worthing To Brighton |
15.4 kilometres (9.6 mi) |
0.1 metres (0.33 ft) |
12.2 metres (40 ft) |
1.1 kilometres (0.68 mi) |
16 metres (52 ft) |
Y-Axis
|
| Selsey To Brighton at Night |
45.5 kilometres (28.3 mi) |
1.5 metres (4.9 ft) |
162 metres (531 ft) |
4.3 kilometres (2.7 mi) |
132.7 metres (435 ft) |
Y-axis
|
| Selsey To Brighton |
45.5 kilometres (28.3 mi) |
1.5 metres (4.9 ft) |
162 metres (531 ft) |
4.3 kilometres (2.7 mi) |
132.7 metres (435 ft) |
Y-axis
|
| Ice Swan - Rock Lake Manitoba (Frozen) |
Simultaneously - 5 miles (8.0 km) , 6 miles (9.7 km) , 7 miles (11 km) , 8 miles (13 km) |
.5 feet (0.15 m) |
1.5 feet (0.46 m) |
0.866 miles (1.394 km) |
Simultaneously - 11.4 feet (3.5 m) , 17.6 feet (5.4 m) , 25.1 feet (7.7 m) , 33.9 feet (10.3 m) |
Y-axis & Z-axis
|
| Oceanside Pier to Catalina Island |
61 miles (98 km) |
30 feet (9.1 m) |
2,097 feet (639 m) |
6.7 miles (10.8 km) |
1,965 feet (599 m) |
Y-axis
|
| Minehead to Second Severn Bridge |
41.8 miles (67.3 km) |
256 feet (78 m) |
449 feet (137 m) |
19.5 miles (31.4 km) |
330 feet (100 m) |
Y-axis
|
| Glencoe Pier to Waukegan NRG Power Station |
17.2 miles (27.7 km) |
8 feet (2.4 m) |
Estimated 118 feet (36 m) |
3.4 miles (5.5 km) |
125 feet (38 m) |
Y-axis
|
| Pine Island to Cutter Rock |
11.2 miles (18.0 km) |
2.5 feet (0.76 m) |
Estimated 12 feet (3.7 m) |
1.9 miles (3.1 km) |
57.4 feet (17.5 m) |
Y-axis & Z-axis
|
| Dennis Beach to Gullivers Cove |
56 miles (90 km) |
84 feet (26 m) |
Estimated 660 feet (200 m) |
11.2 miles (18.0 km) |
1,337 feet (408 m) |
Y-axis & Z-axis
|
| The Lhen Beach to The Mull of Galloway Lighthouse |
22.6 miles (36.4 km) |
6 feet (1.8 m) |
325 feet (99 m) |
3 miles (4.8 km) |
256 feet (78 m) |
Y-axis
|
| Puig Sallfort to Giraglia Lighthouse |
325 miles (523 km) |
3,211 feet (979 m) |
279 feet (85 m) |
69.4 miles (111.7 km) |
43,680 feet (13,310 m) |
Y-axis
|
| Mille Lacs Lake to Mille Lacs Lake |
16.6 miles (26.7 km) |
Estimated 50 feet (15 m) |
Estimated 50 feet (15 m) |
8.6 miles (13.8 km) |
42 feet (13 m) |
Y-axis & Z-axis
|
| Liverpool to the Isle of Man |
84.4 miles (135.8 km) |
218 feet (66 m) |
2,037 feet (621 m) |
16 miles (26 km) |
2,932 feet (894 m) |
Y-axis
|
| Liverpool to Anglesey |
52.5 miles (84.5 km) |
242 feet (74 m) |
720 feet (220 m) |
19 miles (31 km) |
746 feet (227 m) |
Y-axis
|
| Worthing to Beachy Head Cliffs and Lighthouse |
27.1 miles (43.6 km) |
4 feet (1.2 m) |
141 feet (43 m) |
2.4 miles (3.9 km) |
405 feet (123 m) |
Y-axis
|
| Pine Island to Billy Steels Beacon Light |
7.5 miles (12.1 km) |
4 inches (0.10 m) |
12 feet (3.7 m) |
.7 miles (1.1 km) |
30.8 feet (9.4 m) |
Y-axis & Z-axis
|
| Playa de Santiago to Paquita Parez Fishing boat |
4.7 miles (7.6 km) |
1 foot (0.30 m) |
Not Applicable |
1.22 miles (1.96 km) |
Not Applicable |
Z-axis ONLY
|
| Prestatyn to Black Combe |
63.2 miles (101.7 km) |
23 feet (7.0 m) |
1,970 feet (600 m) |
5.87 miles (9.45 km) |
2,191 feet (668 m) |
Y-axis
|
| Southport to The Isle of Man |
72 miles (116 km) |
45 feet (14 m) |
2,037 feet (621 m) |
8.2 miles (13.2 km) |
2,713 feet (827 m) |
Y-axis
|
| Blackpool Tower from 4 locations |
18 miles (29 km) , 28 miles (45 km) , 30.2 miles (48.6 km) , 33.6 miles (54.1 km) |
15 feet (4.6 m) , 30 feet (9.1 m) , 20 feet (6.1 m) , 15 feet (4.6 m) |
Tower 550 feet (170 m) Roller Coaster 235 feet (72 m) |
4.7 miles (7.6 km) , 6.7 miles (10.8 km) , 5.4 miles (8.7 km) , 4.7 miles (7.6 km) |
117.2 feet (35.7 m) , 302 feet (92 m) , 407 feet (124 m) , 555 feet (169 m) |
Y-Axis
|
| Point Aux Herbes to Fort Pike Bridge |
7 miles (11 km) |
6 feet (1.8 m) |
10 feet (3.0 m) |
3 miles (4.8 km) |
10.7 feet (3.3 m) |
Y-axis & Z-axis
|
| Marineland to Anastasia Park |
13.2 miles (21.2 km) |
15 feet (4.6 m) |
15 feet (4.6 m) |
4.7 miles (7.6 km) |
47.7 feet (14.5 m) |
Y-axis
|
| Burnt Mt. to Mt. McLoughlin |
95 miles (153 km) |
1,960 feet (600 m) |
9,495 feet (2,894 m) |
54.2 miles (87.2 km) |
1,109 feet (338 m) |
Y-axis
|
| Key Biscayne. to Cape Florida Lighthouse |
13.75 miles (22.13 km) |
6 feet (1.8 m) |
95 feet (29 m) |
3 miles (4.8 km) |
77.1 feet (23.5 m) |
Y-axis & Z-axis
|
| Canigou to Le Meije |
435 kilometres (270 mi) |
2,785 metres (9,137 ft) |
3,982 metres (13,064 ft) |
188 kilometres (117 mi) |
2,777.2 metres (9,112 ft) |
Y-axis & Z-axis
|
| Beacon Fell to Isle of Mann |
86 miles (138 km) |
864 feet (263 m) |
2,037 feet (621 m) |
36 miles (58 km) |
1,667 feet (508 m) |
Y-axis
|
| Sheridan Park to Bradford Beach |
7 miles (11 km) |
3 feet (0.91 m) |
20 feet (6.1 m) |
2.12 miles (3.41 km) |
15.87 feet (4.84 m) |
Y-axis & Z-axis
|
| Port Washington Power Plant to Elm Road Power Plant |
37 miles (60 km) |
2 feet (0.61 m) |
550 feet (170 m) |
1.7 miles (2.7 km) |
829 feet (253 m) |
Y-axis & Z-axis
|
| Ryde Seafront and Pier from Selsey |
26 kilometres (16 mi) |
15 metres (49 ft) |
48 metres (157 ft) |
4.37 kilometres (2.72 mi) |
36.3 metres (119 ft) |
Y-axis
|
| Cape Arago Cape to Blanco Light House |
34 miles (55 km) |
30 feet (9.1 m) |
256 feet (78 m) |
6.7 miles (10.8 km) |
496 feet (151 m) |
Y-axis
|
| Anchors Home to Barrow in Furness |
18.4 miles (29.6 km) |
2 feet (0.61 m) |
20 feet (6.1 m) |
1.7 miles (2.7 km) |
185 feet (56 m) |
Y-axis & Z-axis
|
| Helsinki |
6 miles (9.7 km) |
4 inches (100 mm) |
10 feet (3.0 m) |
.7 miles (1.1 km) |
19 feet (5.8 m) |
Y-axis
|
| Anchors Home to Barrow in Furness II |
20.4 miles (32.8 km) |
1 inch (25 mm) |
20 feet (6.1 m) |
.35 miles (0.56 km) |
268 feet (82 m) |
Y-axis & Z-axis
|
| Itälahti Lauttasaari to Gråhara Lighthouse |
4.3 miles (6.9 km) |
30 centimetres (12 in) |
15 metres (49 ft) |
1.21 miles (1.95 km) |
4.7 metres (15 ft) |
Y-axis & Z-axis
|
| Beacon Fell to Isle of Mann II |
86 miles (138 km) |
864 feet (263 m) |
2,037 feet (621 m) |
36 miles (58 km) |
1,667 feet (508 m) |
Y-axis
|
| Atwater Park to Edgewater generating station |
44 miles (71 km) |
2 feet (0.61 m) |
555 feet (169 m) |
1.7 miles (2.7 km) |
1,191 feet (363 m) |
Y-axis
|
| Windpoint lighthouse to Bayview |
70 miles (110 km) |
20 feet (6.1 m) |
108 feet (33 m) |
10.2 miles (16.4 km) |
68 feet (21 m) |
Y-axis
|
| Fort Niagara to Toronto |
30.8 miles (49.6 km) |
6 feet (1.8 m) |
306 feet (93 m) |
3 miles (4.8 km) |
515 feet (157 m) |
Y-axis
|
| Lake Tahoe |
18 miles (29 km) |
3 feet (0.91 m) |
234 feet (71 m) |
2.1 miles (3.4 km) |
168 feet (51 m) |
Y-axis
|
| Miramar Beach to Anacapa |
31.63 miles (50.90 km) |
3 feet (0.91 m) |
930 feet (280 m) |
2.1 miles (3.4 km) |
580.7 feet (177.0 m) |
Y-axis
|
| La Gomera to Sail Boat |
43 kilometres (27 mi) |
32 metres (105 ft) |
Estimated 25 feet (7.6 m) |
21.1 kilometres (13.1 mi) |
37.5 metres (123 ft) |
Y-axis & Z-axis
|
| Albufeira to Praia de Faro Tower |
22.9 kilometres (14.2 mi) |
9.8 metres (32 ft) |
19 metres (62 ft) |
11.1 kilometres (6.9 mi) |
10.8 metres (35 ft) |
Y-axis & Z-axis
|
