VEDA,DAWN/USHA AND THE SUN

There is reference of Sayan. Here I am giving my own observation.

In the pictures,there is an interesting data regarding the distance between the Sun(here addressing as Varuna)and the Usha/ Dawn.
Though the Usha is term related with a particular Time ,the measurement here is in distance
30 Yoganas.
1 Yogana is 12km.
Why this type of inter relationship is given?
The Rishi is viewing the Dawn in a particular place. Followed by the rising Sun .THE TIME GAP between the ‘Civil Dawn’/’Civil Twilight’ and ‘the Sun rising’ is ALWAYS constant. This is given in the first two words of this REEK NUMBER 8.
So observing any fixed object illuminated by the dawn followed by the Sun THAT CONSTANT TIME can be deduced. if the length of the Horizon (That the Sun traverses by a day (12 hours or asper the Veda the Unit was ‘DANDO’),then from this the distance between the Dawn time and Sun rising can be deduced.
Here is given 30 Yogans.This confirm s they knew the Length of the Horizon also. I will try to show you that latter on.

https://www.ga.gov.au/scientific-topics/astronomical/astronomical-definitions
Civil twilight
Beginning of morning civil twilight.
Defined as the instant in the morning, when the centre of the Sun is at a depression angle of six degrees (6°) below an ideal horizon. At this time in the absence of moonlight, artificial lighting or adverse atmospheric conditions, the illumination is such that large objects may be seen but no detail is discernible. The brightest stars and planets can be seen and for navigation purposes at sea, the sea horizon is clearly defined.

HORIZON
The curvature is the reciprocal of the curvature angular radius in radians. A curvature of 1.0 appears as a circle of an angular radius of 57.3° corresponding to an altitude of approximately 2,640 km (1,640 mi) above Earth’s surface.
https://en.m.wikipedia.org/wiki/Horizon
So 1°means 46km.
So 6°means
276km
So the Sun remain 276km away from the Usha or Dawn.
1 yogan means 12km.
30 yogan means 360km.
Difference is 360-276=84km.
This may come for the Hymns or Suktas are Visioned at the spot which is higher from the Sea Surface.So a differences between the data I have cited at Sea Level and this Hymn is expected. And from that difference the exact location wherefrom this Hymn was Visioned ,can be deduced.

Bengali Meaning
The Rishi : The KAKSHIBANTO ,THE SON OF DIRGHATOMA.

The Source
The Hymn or the REEK.

Veda,the Sun and the concept of interstellar Machine

This is the first time probably , you are hearing about the INTERSTELLAR MACHINE.Here I am giving the document in support to this from the REEK VEDA.

The interstellar force is called Gravity or Gravitational Force. Here in this beautiful Sukta in verse number 1 , the REEK is speaking that : You O God Sabita (one who gives birth to this Earth,that means the Sun ) through a beautiful machine is holding this Earth. So the Earth is balanced and stable . The Sun is holding the Earth with invisible spokes like Rays. Like the horse the Sun gallops in the celestial ocean binding the Earth and travers the Horizon.

verse no 2. The Sun takes birth from Ocean of Energy . The Sun knows that source of Energy of the Universe in the Celestial Ocean . Thus He fixes the Earth, the entire Horizon and the sky of the Earth.

Reek Sukta
Bengali Translation
Source