Hermograph Press

Educational Materials and Informative Publishing To Improve the Astronomy in Schools

Hermograph is back from Germany, and we're cooking up new batches of Spectrum Viewers!
Delivery will begin in November 2018.

Two-sided viewer designed by an astronomy teacher for ease in seeing and identifying element and molecular spectra from gas tubes.

    "One of the biggest challenges that I have faced when using other spectrum viewers is that the students never know what they are supposed to see and struggle to hold their viewers at the correct angle to the light source.  The Classroom Astronomer Spectrum Viewers alleviate both of these issues and provide a simple but effective classroom instruction tool.  I find these viewers to be much more useful and easier to use than models I have used in the past." - November 2012 NSTA Science Teacher review.


  1. No longer hunt the Internet or multiple textbooks for reference spectra--the 16 most common gas tubes found in physics, astronomy and chemistry labs/classes are on the Viewer!

    Spectra, divided into four groups from the Periodic Table, that are included are: Noble Gases--Helium, Neon, Argon, Krypton, Xenon; Metals--Sodium and Mercury; Non-Metals: Hydrogen, Nitrogen, Oxygen, Chlorine, and Iodine; Molecules and Mixtures--Air, Water, Carbon Dioxide.

  2. Extra-large viewing window, 3 inches (7.5 cm), makes it easier for one or more students to see the spectrum.

  3. The comparison spectra were made using the same diffraction grating film, sharing the same scale, resolution and light distribution as the viewed spectrum when directions (included on both sides of the Viewer) are followed.

  4. Measuring scales are approximately proportioned to sine-theta instead of linear like most hand spectroscopes, accommodating for the Law of Diffraction and removing common systematic errors.

  5. Brightest visible line markers help eliminate false identifications.

  6. Specifications:  5.75 x 8.5 inches (~14.5 x 21.5 cm).  Comes with instructions/notes sheet.

"...puts basic spectroscopy in the hands of the masses at an affordable price."  - Mike Marks, Edutarium, MA

"After using these, my students didn't want to use hand spectroscopes. These were easier to use!" - D. Franklin, Mercer University Atlanta, GA

Is your campus/school/neighborhood really "green"?  Here's a two-sided viewer for studying local area lighting for light and energy efficiencies, and light pollution

New, Version 2.0!

More realistic light spectra, better color renditions.  

Useful for physics, astronomy and environmental science courses, teachers or informal educators.

The front side shows 11 comparison spectra of High Pressure and Low Pressure Sodium, Metal Halide, Mercury Vapor with and without phosphor, Fluorescent and CFL, and Incandescent lights, plus specialized lights such as LEDs, Neon and "Black Light".

The obverse side has technical specifications about different kinds of lights, their cost and energy efficiency rankings, and a procedure on how to determine your area's "green" level, notes about lighting and their spectra, and a general description about continuous, absorption and emission spectra!

Comes with a two-page Notes sheet.

"The analysis of spectra to determine lighting cost and efficiency is an excellent way to integrate engineering concepts into the high school physics curriculum as suggested by the Next Generation Science Standards"  - Jim Nelson, Santa Fe College, FL and Florida AAPT Section Representative

"...great tools for raising awareness of just how much energy your local lighting consumes as well as for education in or out of the classroom." - International Dark Sky Association E-Newsletter, August 2012

"Ooooh, I just got mine and love, love, love it!  Just what I wished I'd invented years ago.  We'll be using it for sidewalk astronomy... "  - Vivian White, Astronomy Educator, San Francisco, CA


Prepackaged sets: 10 - $85, 30 - $225, 40 - $285

[Single Viewers, $9.50]
FREE SHIPPING for orders (USA) over $100 when prepaid!

For other quantities or for reselling, please contact us the phone number below or by email 

Order by:

Telephone:  1-404-702-8147.

Fax: +1-404-393-7037  (Use this Form!)

Mail:  Hermograph Press LLC, 2135 Interstate Drive #130, Opelika, AL 36801   USA  30066  (Use this Form!)


click on a purchase choice below...
then click on The Spectrum Viewer image at the bottom

Purchase Element Viewers | Lighting Viewers | Purchase Equal Sets of Each Kind of Viewer