Explore Scientific Twilight Nano Alt-Azimuth Mount w/1.25" Steel ST1 Tripod — image 1
Explore Scientific

Explore Scientific Twilight Nano Alt-Azimuth Mount w/1.25" Steel ST1 Tripod

The cheapest mount here that is genuinely steady enough to be worth owning. No motors, no tracking and no alignment: you point it, and it stays pointed, which is more than most bundled tripods manage.

74/ 100
Polaris Score
Performance · ease · portability · upgrade path
See the breakdown ↓
GoTo
No
Mount Type
Alt-azimuth (manual)
Payload Capacity
6.4 kg
Tracking
No
From$99.99

Lowest in 90 daysLowest ever tracked

Price tracked by PolarisObserved 30 timesTracking since Mar 2026

Where to buy

Verified yesterday · prices tracked daily

01What it's good at

What it's best at — and the trade-offs.

Carries 6.4 kg on a steel tripod, which covers almost any small refractor or the 90 mm Maksutov class
Best at
✓Carries 6.4 kg on a steel tripod, which covers almost any small refractor or the 90 mm Maksutov class
✓Nothing to power, align or configure, so the time between opening the case and seeing something is about a minute
✓A Vixen saddle takes any standard dovetail, so it accepts far more telescopes than the mount it usually replaces
✓Light enough to carry assembled in one hand, which is the difference between a telescope you use and one you mean to use
Trade-offs
!No tracking, so at high magnification the object leaves the field within a minute or two and you nudge it back by hand.
!25 inch steel legs are steady for the payload and not beyond it, and there are no slow-motion controls, so fine pointing is done by hand pressure.
02In plain English

The numbers, in plain English.

6.4kg payload
Payload capacityReal for its size
6.4 kg (14 lb)
Payload on an alt-azimuth mount is about steadiness, not strength: the number that matters is the weight at which a tap on the focuser stops settling within a second or two. At 6.4 kg on steel legs this comfortably holds a small refractor or a 90 mm Maksutov. Treat it as a ceiling rather than a target, because a telescope at the exact rated limit is always the one that shakes.
TrackingThe defining limit
None
There is no motor and no clock drive, so the sky drifts through the eyepiece as the Earth turns. At 50x an object crosses the field in roughly a minute, at 150x in about twenty seconds. For visual observing that means an occasional nudge, which most people stop noticing. For photography it means nothing longer than a short video of the Moon.
Mount typeIntuitive
Alt-azimuth
Alt-azimuth means it moves up and down and left and right, the way a camera tripod does. That is the whole appeal: there is no polar alignment, no counterweight and no mental translation between what you see and how you push. The cost, which only matters for photography, is that the field of view slowly rotates as the mount tracks an object across the sky.
SaddleUniversal
Vixen dovetail
The Vixen dovetail is the small-telescope standard, so this accepts the tube rings and rails fitted to almost every refractor and small Maksutov made. It matters more than it sounds, because a mount with a proprietary attachment locks you into one manufacturer's tubes and this does not.
WeightCarry it out whole
About 6 lb assembled
A mount light enough to carry outside fully assembled is a mount you will use on a marginal evening. The steel legs give it enough mass to damp vibration while staying inside one-handed territory, which is the balance most budget tripods get wrong in the other direction by being both light and springy.
03The Polaris Score

How it scores, and why.

74/100
74/ 100
Explore Scientific Twilight Nano Alt-Azimuth Mount w/1.25" Steel ST1 Tripod

Scored as a first visual mount, where the job is steadiness per pound and per dollar. It does that well. Performance and upgrade potential sit low because it does not track, which is a statement of what it is rather than a criticism.

Performance
55
Ease of use
95
Portability
94
Upgrade potential
50

Polaris weighs tracking and payload capability, how easy the mount is to live with, how portable it is, and how far it takes you before you outgrow it — not list price or brand.

04Who it's for

An honest fit check.

A visual observer with a small refractor or Maksutov who wants the view to stop shaking.
Buy it if you
✓A visual observer with a small refractor or Maksutov who wants the view to stop shaking.
✓Also the right first mount for anyone who has just bought an optical tube on its own and discovered it does not come with legs.
Look elsewhere if you
!Anyone intending to photograph the deep sky.
!There is no tracking of any kind here, so the sky drifts out of the eyepiece and exposures are not possible.
!Owners of anything heavier than about 6 kg should look at the Twilight I instead.
05The numbers

Full specifications.

5 measured and stated values
Mount & drive
Payload Capacity6.4 kg
More
GoToNo
No GoTo, so it will not find targets for you. You locate and frame them yourself.
Mount TypeAlt-azimuth (manual)
TrackingNo
No motorized tracking, so objects drift as the Earth turns. It is aimed and nudged by hand.
weight lbs6lbs
Editor’s Take

The single most common disappointment in amateur astronomy is a decent telescope on a mount that wobbles, because a shaking image reads as bad optics. This is the cheapest object that fixes that, and fixing it changes the hobby more than any eyepiece will.

— The Skynocular verdict
06Pairings

Pairs well with.

3 scopes we would actually put on this mount

The scopes we’d actually put on this mount — chosen for payload, balance and intended use. Comfortable means room to spare; near the limit still works, with care.

SVBony MK90 Maksutov-Cassegrain
Comfortable
SVBony
SVBony MK90 Maksutov-Cassegrain

At 1.4 kg the MK90 is a fifth of what this mount will hold, so the view settles the instant you let go of the focuser. This is the pairing the mount exists for.

Sky-Watcher Skymax 102 mm Maksutov-Cassegrain Telescope OTA
Comfortable
Sky-Watcher
Sky-Watcher Skymax 102 mm Maksutov-Cassegrain Telescope OTA

A 1.9 kg Maksutov with a long focal length, which is exactly where a rock-steady mount pays off most. Plenty of margin left over.

SVBony MK105 Maksutov-Cassegrain
Comfortable
SVBony
SVBony MK105 Maksutov-Cassegrain

Two kilograms of Maksutov, comfortably inside the rating. Expect to nudge it back into view often at 136x, since nothing here tracks.

Simple mechanical mounts do not become obsolete. This stays useful as a travel or grab-and-go mount long after a larger tracking mount becomes the main one.

Community

Used in these setups.

Real builds from the community that include this product.

Portable Travel Rig

Featured

Grab-and-go refractor for casual observing and travel. The Evostar 72ED and the Twilight Nano together weigh less than a folding chair, and the mount is a simple alt-azimuth — up and down, left and right, no alignment. Set it on the ground, drop the tube on, and you are looking at something inside a minute. The Panoptic 24mm gives just under 4° of true field; add the 35mm when you want the widest view the little scope can produce.