Stonehenge Summer Solstice Sunrise 2014
Solstice Sunrise Timelapse June 19th 2014 from 05:00GMT.
Note that the trees on the horizon displace the Sun's "first gleam" position to the right of the tip of the HeleStone.
If the Larkhill "SunGap" was restored, first gleam would appear to the left of the HeleStone as it still did only 100 years ago.
4,500 years ago, first gleam was approximately 1° further to the left (ie two solar diameters). The difference is due to the the change in the obliquity of the ecliptic in the past four and a half millennia.
Taken with Canon 1100D from just in front of the Altar Stone, directly on the solstice axis.